Home
Broad chest, weak lungs - Are men more prone to respiratory diseases?The long-standing, chronic afflictionof the respiratory disease is called as COPD, i.e., Chronic Obstructive Pulmonary Disease. COPD is the obstruction within the lung tissue, causing improper circulation and entrapment of air. This limits the space for air to move in and out, directly affecting the quality of inhalation. A small reminder here may be necessary - breathing is synonymous with life, why? Because that's how we get oxygen, which is vital for the functioning of each and every cell within the body. With COPD, the ability to take in oxygen gets compromised increasingly. Continued cough, sputum, and shortness of breath are the main symptoms. COPD is more common in men. Does it have to do anything with being a male? Not necessarily. No specific link has been established to say that COPD risk is higher for you solely because you are a man. Then, what could it be? A study conducted in 2011 in USA showed that the number of men who smoke is 5% more than the women who do. To understand the reason behind this, let us see the primary causes of this disease. Air pollution, some genetic predispositions, frequent acute infections, exposure to harmful chemicals for a long time (usually occupational) - are some of the main causes, and the number one cause is smoking, owing to almost 80-90% of the cases. Park this thought. Next piece of information is simply revisiting some facts you may already know: #The gender classification ofsmokers - Men are known to smoke more than women all over the world, not only in numbers, but also in quantity. Whether it is a developing country or a developed one, 2011 studies say there are more male smokers everywhere than female smokers. Not only there are more men who smoke, they smoke for longer periods and more number of cigarettes than female smokers. This may vary from country to country, like India has much less women smokers than USA does, but the difference between the two genders holds true everywhere, only the ratios differ. #Occupational exposure to harmful chemicals and gases - These are industries of mining, textile, chemical engineering, welding, etc. The number of men working in such industries is way higher than women. #Air pollution - Men are more exposed to air pollution since they are outdoors more than women. This may not apply to all countries and societies, but is generally true. Now, we can put the pieces together and understand why COPD is more common in men? Yes, they are at a higher risk because of higher exposure to smoking, pollutants and irritants. Cigarette smoking is the leading cause of lung diseases and male smokers outnumber women across the world. You can figure out the math here!
Hair straightening do's and don'tsWhat's in a hair? Well when someone thought of this quote, he or she certainly did not foresee the future because in today's world hair is everything. For a woman and a caterpillar at least! Let's just talk about women! Hair not only covers your scalp, but also protects it.  Hair is known to be something that enhances the beauty of a woman, as there is nothing like the feel of smooth and silky hair caressing the shoulders. Women all over the world dream to have beautiful, strong, silky, and preferably, long straight hair. Why straight hair? Let's find out, women are born with all kinds of hair, curly, wavy, long, and short but according to some women there is nothing that beats having a straight hair and there are women in this world who could go to any length achieving that straight hair they always desired. One of those ways is straightening, a styling technique used since the 1980's, which involves the flattening as well as straightening of hair, to give it a smooth, streamlined, and a sleek look. Straightening can be of two types, temporary or permanent. Temporary straightening can be achieved by a straightening iron or relaxers and generally lasts up to the first wash. Permanent hair straightening generally requires the use of Lye and other chemicals (more commonly known as creamy crack) with the help of a hot comb, hot iron, and relaxers. Permanent straightening, with proper care, can easily last up to a year. According to documentary "Good Hair" by actor Chris Brown, African American women are known for their profound use of "creamy crack" to get that perfect straight hair they long for. They are also the women who make the cosmetic companies rich, thanks to their profound use of hair straightening and hair care related products. African American women also account for the highest amount of money spent on hair care and hair care related products. Coming in a close second are the women from Central and South East Asia. These women are also known to go to extremes to get that perfect straight hair look, which is generally shown in TV Commercials endorsed by celebrities. Now that we are aware of the statistics, it is time that we look into the do's and don'ts of hair straightening. Straightening your hair once in a while may sound like a good idea, but it is extremely essential that we understand that extreme care is required here. Hence it is always better to know the do's and don'ts before we decide to break the bank (straightening ain't cheap) for straightening treatments. Do's : Make sure your diets consist of plenty of healthy foods, water. Also doing regular exercise is advised. Always use a shampoo and conditioner that best suits you. Remember to ask your stylist about the kind of products that suit you. Always go for hair spa treatment once a month since your hair needs that extra nourishing. Don'ts : Do not wet your hair at least for three days after the treatment. Do not tuck your hair behind your ear. Avoid twisting your wet hair with a towel. Avoid extreme scrubbing of your hair while shampooing. Straightening even once can cause excessive damage, hence do not do it repeatedly. Straightening your hair once in a while is okay, but doing it continually is ill advised as it can have a lot of negative consequences. Straightening also comes with certain side effects such as heavy chemical reaction, dizziness, permanent hair damage, dryness, skin irritation, itchiness, and severe chemical burns. Hence, it's always better to have a professional do it at a salon rather than doing it yourself. Hair straightening, though done by the same method all around the world, requires different types of hair care products as the hair type is mostly related to your race and ethnicity and your geographical location.
Even women can kick up a storm - Martial arts and the modern womanMartial arts! Yup you have seen enough of Bruce Lee, Jackie Chan and Jet-Li films on the telly to know there is a lot of hard work involved. All that glass breaking, torso-twisting, nun chucks, whirling to kicking ten opponents at once. Is that all for real? Can a dainty woman go about hurling armed robbers off their shoulders? Or does that happen only in Kung Fu films with real weird names like 'Shaolin Temple Monks down ....' or something equally corny. That apart! Won't you need to learn a bit of Chinese or Japanese to even imitate those shrieks that women in those films emit? Worse still! Imagine they will need sub-titles to even know that you mean business! Jokes apart and no offense to the masters of Muay Thai, Akido and Tae Kwon Do! Martial arts is way beyond just fighting and is in fact a great way of disciplining the body, mind and soul. As a woman too martial arts can have a tremendous impact on your self confidence and awareness about dynamics of the mind. True what they show in martial arts film is all about smashing bones and tables but martial arts goes way beyond that. Through different movements, kicks and punches and holds one may learn to overpower an opponent using his own weight, but martial arts is ALL ABOUT CONQUERING THE SELF AND DESTROYING THE ENEMY WITHIN! So if you are intent on learning martial arts be ready for some action-packed exercise routines that Promote flexibility Increase strength, stamina and endurance Help you gain better control over yourself Help you deal with any problem that life may throw your way Help you be competitive and assertive There are different types of martial arts which have evolved over several centuries. The main forms are Kung-Fu, Karate, Akaido, Judo, Tae Kwon Do, Kalayraipatu amongst others. There is also centuries of philosophies behind the exercises recommended by these disciplines. Some martial arts concentrate only on unarmed combat while there are others which blend both armed combat with weapons like swords, sticks and nun chucks. Martial arts can indeed go a long way today in equipping women with the art of warfare so that they can defend themselves against any assailant armed or unarmed. It will go a long way in shaping societies and culture if the womenfolk are empowered both physically and mentally too. These days it is not uncommon to see martial arts blended with aerobics dance steps. It may not exactly be pure martial arts but that too isn't a bad idea at all. It will only go a long way in developing interest in these ancient art forms and help in their promotion. Just as much as any martial arts movie can. Or maybe even more!
Cranky kids in a diner? dealing with them made a bit easy!This has happened to many a parent. They make a reservation at a fine dining restaurant, perhaps with friends and relatives. But their kid screams, and cries,disturbing the entire restaurant, and spoiling the general mood. For this reason, many parents avoid going out altogether, especially to fancy places. But there are ways in which you can handle the toddler when you are at a restaurant. We will show you how. Carry toys Restaurant may be boring at times for toddlers. That's why they turn peevish and may start playing with forks, spoons or knife. So carry some toys, crayons, notebooks, or even a story book, which will keep them busy and you can have a good time. Order something yummy and healthy for the kid A hungry kid is an angry kid. So, order something which is your kid's favorite and also healthy at the same time. Or you can carry something along with you like fruits breads, cherries or other nutritious treats. Keep responding to what kid says The best way to keep childrenwell behavedis to talk to them and respond whenever the child speaks. Don't avoid them or get too engrossed with other people. They get cranky when they don't get a response from you. Take a round with your kid When the kid becomes difficult to handle, just pick him in your arms and take a mini tour of the restaurant or walk outside. This will distract him and relieve his boredom. Don't tolerate any bad behavior If the bad behavior of the kids is intolerable, then firmly tell them that they need to adopt good manners if they want to visit restaurants again. Disturbing other diners is not acceptable. But it doesn't mean that you punish them.You just have to remove them to a place where they don't bother anyone. Make your outing relaxed and enjoyable Above all, don't forget to have fun and make it an enjoyable evening. Don't get too carried away disciplining the kid. You can afford to be a bit silly and enjoy the time with your child.
Be positive. Here's howAs someone so very rightly said, "We are the sum total of our thoughts". So the more positive thoughts you have, or are capable of thinking, the more positive will be the outcome of your life journey. Here are a few tips to think more positively and empower yourself: Have a daily positive thinking routine. Generally the time when you are just waking up, i.e., the half awake state, is best for you to start feeding positive thoughts about yourself. The mind is more accepting of suggestion at that time. You can just feed your brain with happy and positive thoughts about your situation and what you hope to achieve for yourself and your family. Creative positive visualization is another great method of positive thinking. At a set time, just picture your life in the way you want it to go. This is different from daydreaming. Creative visualization gears you up for action while daydreaming remains just wishful thinking. If you have difficulty in certain areas of your life, say at work or with your relationship, visualize a positive outcome. This will engage your mind in thinking of various action plans to get about that positive result. Positive affirmations are a great way of reminding yourself that all is well. Have patience with yourself as your mind will probably not even believe half the things that you are affirming. That's what affirmations are all about.They are statements that you feed your mind about what you are and what you can achieve. Positive affirmations can help you reprogram your mind to what your heart really desires. Let go. Feel that delicious sense of surrender as you just indulge in mentally letting go of things. As a busy person you probably end up trying to control the outcomes of every situation and feel bad when things don't go the way you expect them to. Remember things can go wrong from time to time. Like you, life is also not perfect, so why expect perfection from others? Learn to let go of that emotional baggage that you are carrying. The weight of the world needn't rest on your shoulders. Collective consciousness is where you should try to tap into. Think of situations where things can go horribly wrong for someone else. Send out a silent prayer for those unfortunate people in this world. Chances are that your prayers just might help some stranger badly in need of a prayer or two. This can only come back to you manifold. Help someone else become a positive person. This can only reaffirm your faith in positive thinking. Positive energy is what everyone naturally seeks and we can for sometime blame our friends or family for being a negative influence on our lives. This line of thinking will get you nowhere. Instead think what's the next best option? Think of how you can convert negative energy or experiences into positive ones. Initially you might meet with resistance, but remember if you are positive then positivity is yours for keeps.
Boost your self-esteemSimply believe in yourself. Life need to be made lighter. Pulling yourself down over trivial mistakes and not reaching certain standard definitely does not help.  Your self-esteem affects the way you interpret messages from others. It affects relationships, academic achievement, and living life to the fullest. Thus, recognize your true potential in life and work towards it. Those who have a high self-esteem always have an “I think I can” or “I will” attitude! This makes life much happier for them. Ups and downs in life are inevitable, but this should not bring down your self-esteem. One should work towards maintaining a high self-esteem at all times.  You need to have the power to control your self-esteem. It should not suffer from negative messages from others; in fact, negative messages should be viewed as constructive criticism. There are many ways in which self-esteem can be given a boost. Accept yourself and increase your inner stability so that you will not need validation or attention from other people. Meet new people. Follow examples of successful people. Don’t worry about how others might judge you. Don’t be afraid to try something new. Failures may come your way, but they are the best teachers in life. Make a list of your strengths and weaknesses. Make the most with what you are best at, and strengthen your weaknesses. Focus on the positives and practice positive self-talk for encouragement. Avoid doing things just to “go along with the crowd.” Gather courage to express yourselves and ‘stand out’ from the crowd, as every new encounter is a learning experience. Develop a support system of friends. They will give due emotional back-up. Put into place good healthy habits; ensure the right kind of diet. Controlling the mind is essential for a healthy body. A stress-free mind is healthy and calm, which will incorporate positive thoughts. Give credit where the credit is due. Praise others and accept compliments in good spirit. This builds confidence. Keep criticism to a minimum, as it brings about negativity. Appreciate life. Look your best to feel your best. It is important to be well groomed. Improve your personal living space. Perfect your skills and practice your talents. Reward yourself often. It’s nice to pamper yourself once in a while. Stop comparing yourself to others; this will increase your stress levels unnecessarily. Your self-worth should not be based upon what others think of you, but how you feel about yourself. Communicate with others, colleagues, neighbors, family, and friends. Be social. Do something for someone else – a random act of kindness! They fill up the void and bring about a different level of happiness. It is beneficial to spend some time alone by yourself. Review your mistakes and analyze the experiences in your life. This should be carried out as a self-therapy, and not as a habit. Do not become a loner. Everyone is a unique. No one else is like you in the whole wide world. This makes you special already! Everything starts with you and ends with you. Remember, nobody can insult you without your permission!! A low self-esteem gives rise to health problems like depression, loss of interest in life, and stress. It is not difficult to correct this stage which comes in everyone’s life. Learn to rise above these shortcomings and improve your outlook about yourself. Confidence comes from not always being right, but learning to be wrong. - Peter T. McIntyre.
Sleep tight at every good night!A good night's sleep! Oh, what would some of us give for that luxury! Sure, you can blame it on the fast paced world and the things you have to do to keep the competition off your turf, and millions of other reasons to be sleep deprived. Yes, sleeping soundly and regularly is well within our control. Maybe it has eluded you so far and you are caught in a vicious circle of staring at the ceiling for hours on end; so read on to see what simple things you can do to gently drift off in to the arms of nature's greatest restorative- beauty sleep. Do's and don'ts for beauty sleep Fix a regular bed time, so that your brain will adjust to this by sending sleep signals to the body. If your bedtime is completely at the mercy of your activities then even as fatigue sets in the body will refuse to obey. So, even as your body is screaming for rest, the mind does otherwise. This is where good old discipline comes in to play. Take in to consideration the activities which are absolutely necessary to do and note the frequency with which they are likely to interfere with your bedtime before setting a realistic bed time. Initially the mind will refuse to obey, and you are most likely to get up, after tossing and turning in bed, to switch on the computer or whatever it is that you do when you cheat your bedtime. Rest assured, in a couple of days the brain will get used to this sleep routine and prepare you for shut down. Sleeping well also largely depends on how stress free you are. If the mind is in a state of constant excitement or anxiety, sleep will elude you. So when you lie down to sleep you need to fade out and blank everything out- joy and sorrow; expectations and ambitions, all of these out for later access! Tell yourself that tomorrow is another day and what you need today, is a state of neutrality! That's what most Indian philosophers would want you to do anyway. A good eight hours of sleep may depend largely on our minds but external factors can matter too. Sleep comes easily when your mattress is comfortable and not too soft or too hard. Use a pillow that won't give you neck pain, as any discomfort in the neck is likely to throw sleep off gear. Wearing clean night clothes can give you better quality of sleep. That goes for the bed spread as well.  Try this for yourself. Tight and uncomfortable night clothing is not recommended as this will only make you wriggle about for comfort. A cozy blanket and some clean nightclothes make great bedtime mates. Some people have a nightcap to help them sleep better while others still, drink themselves to sleep. Alcohol in large doses can only numb but does not help you sleep and you will only find yourself waking up frequently. Sleeping pills can be habit forming and might have serious side effects in the long run. So try simple remedies like a glass of warm milk or hot chocolate before bedtime to help you sleep better. Avoid stimulants like coffee, tea or nicotine before bedtime as that can keep your nerves all hyper thus making sleep quite difficult to come by. Computers and television are also largely responsible for us staying up late and disrupting our sleep patterns. We often find ourselves mechanically flipping channels or browsing without any real need for it. Try and go offline before bedtime, especially if you want to be able to schedule your sleep time. Television or movies can excite the brain and then you will find it difficult to fall asleep. So about an hour before bedtime switch off the telly or computer and just sit quietly and do some deep breathing exercises. Just sit cross legged for about ten minutes and relax your body. You are now ready for a deep slumber.
10 bedtime beauty essentials! Here are the beauty essentials you need to take into consideration, before you hit the bed: Baby-soft soles :Before you sleep, apply Vaseline on the sole of your feet. This will adequately moisturize your soles and you can wake up to the great opportunity of wearing those heels you have been dying to try out! Healing the puffy eyes : If you are worried about waking up with puffy and tired eyes (even after 6 to 8 hours of sleep), then put on a little eye cream. You can also keep an extra pillow and make sure you sleep on your back. This will allow the fluids around your eyes to drain easily and reduce the puffiness. Trying out wavy hairstyle : Bedtime is the best time to work on your hairstyle. Before you sleep, shower and fashion your hair into the style you want. Apply a styling cream on your hair gradually, after having air-dried it. Now, decide if you would like to put them up in buns or braids. Stylize them into the pattern and wake up to wavy hair! Let your skin breathe : Those who are suffering from dry skin can apply moisturizer. A humidifier is also a great accessory for help in these cases. You can switch on the humidifier before you go to sleep. This will help your skin to retain its moisture through appropriate hydration. Keep aging at bay :Did you know that sleeping on cotton pillowcases can increase the chances of creases and wrinkles on your skin? Prevent wrinkles by using silk or satin bed clothing. This will also reduce hair breaking. Wake up, miss white smiles: If you want to take off the yellows from your teeth, then brush some baking soda and let them stay for about 8 minutes. Afterwards, thoroughly rinse your mouth. Do not perform this beauty tip more than once a week, it will negatively affect the structure of your enamel. Work on your complexion :During the day, sunlight might disable some face creams from working effectively on your complexion. Make the most use of night and apply a face cream containing retinal and vitamin C. Lengthen your lashes : Eye lashes depth and grace to your eyes. You might feel that working on your lashes will require way too much effort. But, much to your surprise, everything your lashes need is contained in a natural ingredient - castor oil. Consisting of Omega-3 fatty acids, which are highly hydrating, they will avoid your lashes from breaking and also strengthen them. Apply castor oil on your lashes before you sleep and watch them grow thick and healthy within a few weeks! Taking care of your hair : Skim leave-in conditioner through your hair in the evening and let them stay on till the morning. This will let them become soft and shiny. You can also use coconut oil as an alternate conditioner. Readying your nails for polish : Depending on the skin type, the nails of certain people become dry. If you are one of them, it would be best to apply a cuticle cream or oil on them before you sleep to wake up to polish-ready nails.
Common causes of allergic reactionsAllergic reactions, most of the times, do not warrant immediate medical attention. But never ignore or take any allergic reaction lightly! Allergic reactions include itching or a puffy face or swollen red blotches all over your body or a fit of sneezing.  If we know what allergies have, we can avoid the triggers. So, here is a list Soaps and detergents: Are your palms are all rough and peeling off in patches and it doesn't seem to go away? Time to do a check on the dish-washing soaps and the detergents you may be using. Most of the brands contain harsh chemicals that burn while you use them. Medically known as Contact Allergic Dermatitis, this is one of the most common allergic reactions. Artificial Jewellery: Even the best looking jewellery can, at times, trigger allergic reactions. Another common type of Contact Allergic Dermatitis, this happens when you wear artificial jewellery. Most of the jewellery of this variety contains Nickel which is the main cause for this type of allergic reaction. Clothes: Clothes can be a cause for allergic reaction. While synthetic fibres like nylon and polyester are common factors, at times, the chemicals used in the dyeing can also be a reason for allergy. Add to it the perspiration and the constant friction between the skin and the clothes, and you have a severe allergic reaction guaranteed! Latex: Latex is also a very common cause for allergy. Commonly found in condoms, gloves and certain medical devices, allergy to latex can range from minor itching and redness, to a serious life-threatening anaphylactic reaction. Milk and milk products: The symptoms for this source of allergy include loose motions and stomach, among other things. Medically called as Lactose intolerance, it occurs in people who do not have the necessary enzymes in their bodies to digest milk and milk products. Food allergies: Peanuts, brinjal, fish etc can also trigger allergic reactions. Food reactions are specific to individuals. One may suffer from an allergic reaction to almost any kind of foodstuff. Beauty products: From shampoos and creams to nail paints and lipsticks, every cosmetic you use is a potential allergic trigger. Molds: These are microscopic fungi found in damp and moist places.. Allergic reactions to molds are pretty common and seasonal. Cockroach: The proteins secreted by the glands and the saliva of the cockroach can be allergic to humans. Sneezing, itchy and watery eyes are common symptoms. Insects: Insect stings can lead to burning and stinging pain with redness and a slight swelling around the bite/sting area. In some people though, insect bite/sting proves to be life threatening. Symptoms as severe as difficult breathing, rapid pulse, severe drop in blood pressure and swelling of face and throat may occur!
Dos and don s during heat crampsHeat cramps can affect people who exercise or work in the heat. It could be due to dehydration, so if you are going to be active in the heat then you need to drink a lot of water even if you are not thirsty. Before going out, find out what the temperature is and do not exercise outdoors in the heat. Heat cramps may not be as serious as heat exhaustion or heat stroke, but the condition needs to be treated with the same urgency. People who are on low-sodium diets may be affected more than others. Heat cramps may seem mild, but they can be the first sign of heat exhaustion, so pay attention and stop all activity, and rest. Here is what you can do and what you should avoid if you suffer from heat cramps: Dos : If you have muscle spasms and the muscles are unable to function properly, then immediately stop all activity. Get inside a room or go into the shade and take some rest. Raise the feet to 12 inches above the body. Gently massage and stretch the muscles. Wet a paper towel or handkerchief and drape it around your face, at the back of your neck and underarms. Drink a clear natural juice or a sports drink to get the electrolyte balance back. Do not go out in the sun again even if the spasms have subsided. If the cramps last more than an hour then go to a doctor. If you are on a low-sodium diet then tell the doctor about it. Don s : Don take any painkillers or fever tablets as they could cause harm. Avoid caffeine, alcohol, and sugary soda drinks. Don rub alcohol on the muscles. Don drink ice cold drinks as they can cause stomach cramping. Don take salt tablets unless the doctor has prescribed them. Don do your full quota of exercises if the heat is getting on to you. Don stop drinking water even if you do not feel thirsty. Don resume any strenuous activity for several hours after a heat cramp. Prevention:Prevention is always better, so it’s a good idea to reduce exercise in the summer, especially when it is extremely hot. If people are working outside, like construction workers, then they must take more breaks, keep their heads covered and sip on water after every 10 minutes to prevent heat cramps. Always plan ahead and get acclimatized if you know you have to do a physical activity in the heat that could cause sweating. If you are an athlete, then do take a mix of sports drink, water, and juices to maintain the electrolyte balance. Always carry water with you if you are playing any sport in the heat. All events must be planned at a time when the heat is bearable and not when it is too hot. Keep a close watch on the person if there are signs of vomiting and nausea along with flushed skin. Rush them to the hospital.
Painful intercourseSome of the causes affecting women can be: Going too fast, penetrating from an awkward position. Do not hesitate to tell your partner that it hurts and he needs to slow down or change position in order to make you comfortable and prevent pain. Dry vagina or lack of natural lubrication in the vagina. This dry vagina is caused due to some medications, changes at the menopause. Sometimes just increasing the time of foreplay can help vaginal lubrication. Use water-based lubricant to reduce pain. Failure to fire off. Sometimes failure of the vagina and uterus to respond to sexual arousal can lead to irritation and tenderness. The vagina may be too tight for the intercourse sometimes or the uterus may not be raised so that the penis comes in contact with the cervix during penetration. Using other penetration methods can be helpful to explore the level of arousal before engaging in intercourse. Vaginismus can be the cause of discomfort. Muscles surrounding vagina are sometimes very tight and lead to pain and intercourse to be painful. Woman can examine herself with her fingers to see if vaginal walls are tighter than normal. It can be vaginismus. Normal cause is nervousness or anxiety. It is reversible. Good foreplay before intercourse will help to relax the muscles and help lubricate. Just relaxing before the act can be helpful. Vaginal infection and inflammation due to yeast, herpes, etc. can make intercourse uncomfortable. Fabrics, creams, perfumes may cause irritation in area in some women. Avoid these. First-time sex can be a little painful. Rupture of the hymen can cause discomfort during penetration. Start slowly or begin with forms of penetration other than intercourse. Psychological pain. Sexually traumatic experiences or feelings of guilt associated with sex can make the act painful. Consult a sex therapist or psychiatrist. Discomfort during intercourse is experienced by men too, various causes affecting this outcome for men are: Tight foreskin. During first attempt at intercourse, tight foreskin will make retraction painful. After sometime, the foreskin will become loose and make intercourse comfortable. Any lesion on the penis skin can make intercourse painful. These may result from non-lubricated masturbation or rapid intercourse or STDs. The blisters due to herpes infection can make intercourse extremely painful.
FAQS
T&C FAQS