Home
Fairness scream: The new male obsession"Mirror, Mirror on the wall, who's the fairest one of all?" The words at once evoke images of the evil queen as she strikes a vain pose at the looking glass. However, these days one needs to be more accommodating and make way for a preening gent to put forth the above query. All these days, fairness would be a quality an Indian male would look for in his wife. Just see the Fair & Lovely ads to know what we mean. But today, this very obsession has turned on itself. More and more men are being just as exacting about their own skin color, complexion and tone as their female counterparts. Just take a look at all those TV commercials where celebrity endorsements dangle the bait of fairness creams, lotions and body wash specially designed for teenagers and young men seeking to take them to the promised land of social and sexual success. But before you rush to buy that cream, here's what that fairness is all about Fairness is skin cell deep Fair, ruddy, dark or wheatish is all determined primarily by the melanin content in our skin cells. Some races like the Africans have a high melanin content thereby giving them a dark colour while Europeans are of a lighter skin colour due to low melanin content. So whether you use an expensive fairness cream or go in for beauty treatments at luxurious beauty spas, genetics will have a final say on the matter. How fairness creams work...or do they? Fairness creams contain chemicals which block the production of melanin in the skin and thus enable a lighter skin tone and a fairer complexion. Mostly melanin production in men is more than females, which is why women's fairness creams don't have so much of an effect on men. The cosmetic industry recognized this factor and thus developed products designed for the male skin. However, some of these "men's only" fairness brands are glorified sunblock creams which block the harmful ultra violet radiation of the sun which blackens the skin. The dark side of fair Some of the beauty treatments and fairness creams contain chemicals like hydroquinone, mercury, and even steroids, which could do more harm than good. If you are obsessed about fairness, the least you could do is use a branded product (though that is no guarantee of its efficacy!). First sample it to check of it suits your skin. If a rash breaks out, consult a skin specialist immediately. Finally, it is the health of the skin which is more important than colour. So exercise regularly or use natural skin treatments like orange peels, cucumber patches to enhance your skin tone. Don't give in to peer pressure. The obsession for fairness can lead to low self-esteem and needless rivalry. Cosmetologists and marketers of fairness products are the only ones who will laugh their way to the bank at your cost. So, if you have a darker skin colour you don't have to go in for expensive remedies just because men in your age group find it cool. Self-acceptance is much better remedy than any beauty treatment in the world.  
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!
What to eat when you breastfeedAlmost everyone around you will advise you to eat a calorie-rich food that will aid in milk production from your body. But did you know that your body is quite capable of producing enough milk from whatever you eat? Your body has stocked up on all the fats during your pregnancy days itself. You don't really need the extra calorie rich food just to produce milk for your baby. However, how much calories you need cannot be predetermined. Let your body determine your needs. Eat as often as you want, as often as you feel hungry, but remember to eat foods that will give your body the nutrients and not just satiate the hunger. Opt for whole grains, pulses, fresh fruits, legumes, fresh vegetables and nuts. Choose natural drinks like buttermilk, coconut water, and fresh juices. Remember that the foods that you choose must nourish your body with proteins, calcium, and iron other than carbohydrates. Dried fruits and nuts like cashews and almonds and walnuts are the traditional foods given to new moms to enhance breast milk confinement. They are a very rich source of calories and definitely improve the quality and quantity of milk. However, keep a bottle of water or some juice nearby when you breastfeed. The body releases oxytocin when you breastfeed and it makes you thirsty. So, have some refreshing drink before you breastfeed. Most new moms are advised to drink lots of water as it aids in breast milk production. However, breast milk production doesn't really need extra water. It is best to avoid alcohol when you are breastfeeding. The amount of alcohol in blood and breast milk reaches its highest level about 30 minutes after you have a drink and it lowers down only after about four hours. Drinking alcohol is not advised when you breastfeed, however, if you feel like having alcohol, do so after you feed your child. Also, wait for a minimum of four hours before you feed next. Ghee is another item that new moms are encouraged to consume for milk production. However, if you are eating a balanced diet there is no real necessity to eat too much of ghee. Avoid aerated drinks, tea, and coffee while you are breastfeeding. Similarly, junk food and foods that are not cooked at home are best avoided. These types of foods fill you up, but provide no real nourishment. Herbal teas are considered safe drinks during breast feeding. However, consult your doctor before you consume any herbal medicines. Do not forget to take your prescribed supplements of iron, folic acid, and calcium regularly during breastfeeding. Your body also needs more amounts of vitamin C, vitamin B12, zinc, and vitamin A. These, you may obtain by eating foods that are rich in them or your doctor might prescribe supplements. Weight gained during pregnancy may be a concern now and you may want to lose it to regain your pre-pregnancy shape. Remember to lose weight gradually with the help of a balanced diet and moderate exercise. Do not starve yourself. Also heavy exercising may release toxins into the bloodstream and breast milk. Keep in mind that you will gain your original weight back only after your baby has completely weaned off breast milk and has started eating solid foods. Breastfeeding is the best option for your baby. It gives your baby everything that it needs and keeps it free of all diseases. Do not shy away from breast milk, do it the right way! Your body is quite capable of producing breast milk from the well-balanced diet that you eat and there is no real need for a calorie-rich food that new moms are fed.
A baby - proofed guide to childcareCaring for kids is an important task. Everyone wishes to nourish kids in a loving and caring yet protective atmosphere. Initial stages of development call for more care and attention. Health, hygiene and safety at home and outside are important when it comes to kids. Here are a few helpful tips to all the parents: Nurture your infants with massage. Learn a right way or get it done from a professional. It is a great therapy to make muscles strong and bond with the baby. Prolonged crying bothers parents a lot. Usually continuous crying for long hours is suggestive of colic or stomach ache. It is the most common problem in kids, the reason being immature gastric system. Do not panic. Keep medicines at hand and give them as per instructions by your kid's doctor. Toddlers often insist on being carried even when they know how to walk well. Make sure to hold them comfortably. Diapering a baby is a skill that must be mastered especially when the baby is fidgety. Holding baby in right position flat on the back simplifies the task. Parents adapt to doing the job effortlessly with practice. Transition period of swapping from breastfeed to bottle known as weaning is a tough task for most of the babies. Consider gentle weaning strategies advised by the doctors. Do not be abrupt. Go slow! Some Safety Tips: Cap and lock the medicines, detergents, chemicals etc. in containers keeping them far away from the children. Bathingwater should be always checked before bathing the baby. Do not leave kids alone near water tub or any water source alone. Avoid leaving baby in a highchair to prevent injuries such asbaby climbing out, falling, or sliding. Lock up all the knives, matches, and plastic bags away from children to prevent poisonings, bleeding injuries, burns and suffocation.
Crossing the smoke screenWhy should someone quit smoking? Smoking is probably the worst sedentary lifestyle habit that we pick up. Quitting smoking changes everything right from the way you feel, taste and smell, your breath smells better and even your cough goes away. Quitting smoking cuts down the risk of cancer, stroke, neuropathy, heart disease and breathing disorders like bronchitis, pneumonia, and emphysema. Not just that, quitting saves money too... just one of the many financial rewards of quitting. Quit Smoking Tips Write down the reasons you want to quit for, and how it will benefit you: for e.g. live longer, feel better, family safety, save money, smell better, find a soul mate easily, etc. You know what's bad about smoking and you know what you'll get by quitting. Read the list daily. Ask for help from your family and friends. Help and support of family and friends without being judgmental helps a lot. You need their support when you become irritable and even irrational while you withdraw from your smoking habit. Set a Deadline. Set a quit date when you will extinguish forever. Prepare a plan. Talk with doctor and take his support and guidance. Exercise. Exercise helps relieve stress and recovers body from damage caused due to cigarettes. Start slow and increase up to 30 to 40 minutes. Begin to breathe. Daily deep breathing for 5-15 minutes will help cleanse the respiratory system and provide more oxygen repairing the damage caused to respiratory system and help cope with withdrawal symptoms. Do not quit abruptly. Cut down on cigarettes gradually. Plan everything about number of cigarettes you will smoke each day till the quit date, reduce the number each day. Buy single cigarette at a time. This helps a great deal to limit smoking. Change brands. This way you won't enjoy smoking as much. Undertake social commitment. Keep your packet of cigarettes with someone else, so that you have to ask for them each time you want to smoke. This way you'll feel guilty about asking and hence smoking; hence lowering the number of times you smoke. Find a mate who is trying to quit. This will boost the morale and keep up the positivity. Try finding a quitting chat room. Learn what triggers desire to smoke - like stress, the end of a meal, arrival at work, entering a bar, etc. Avoid these triggers or if that's impossible, plan alternative ways to deal with the triggers. Now, after you have read this, sit down and write your own list suitable to your personality and way of doing things and create your own plan for quitting.  
Lost in wonderland? - Absentmindedness!The Daily Telegraph reports that on an average every adult in UK forgets three things per day. Forgetfulness is a human tendency. If this absentmindedness or forgetfulness is limited to forgetting three to five things per day, then it can be left unattended. However, if you or a near one is facing a lot of trouble in your daily life due to this habit or problem, you should immediately have a consultation with your doctor. Mystery behind Absentmindedness According to Maria Jonsdottir, an investigating neuropsychologist from Iceland, absentmindedness is the mental lapses that usually happen in connection with the actions that are routine or well-rehearsed. You can perform these actions without any need to be careful. This includes regular actions such as squeezing out toothpaste or moisturizer from the tube. These action slips are very common and if you observe carefully, you do forget some such regular things every day unknowingly. Psychologists believe that an individual makes such mental lapses around 30 times in every week. On an average, the nervous system of a human brain runs quite efficiently. However, sometimes temporary fault may develop that may make you use incorrect word or slip to your native tongue while conversing. This does not mean however, that something is wrong with your brain. When the team of Jonsdottir surveyed around 200 people, they found out that on an average the slips are 6.4 per week although the number also greatly depends upon the gender, intelligence level, and age. One startling fact that was discovered is that most of the events of forgetfulness occurred before 8 p.m. that means people tend to forget more during the daytime than in the evening. Apart from a momentary lapse in the functioning of brain efficiency, other reasons that can lead to increase in the incidents of forgetfulness are high stress levels, mobile phones, e-mails, and busy lifestyles. Today, people are pressed for time and they have more work at hand than time and that has increased the occurrence of forgetfulness. Types of Absentmindedness A team of neuropsychologists has divided these mental lapses into five categories. The most common are the storage failures in which people cannot recall what they had planned for a particular occasion or they can recall the action, but cannot remember for whom it was meant. Another category is test failures in which people come back home to check whether they have turned the light off and find out that they have already done so. Discrimination failure is another category of absentmindedness wherein you for a moment fail to identify the difference between your things and others'. During the study, a male participant accepted that he picked up the jacket of his female partner thinking it to be his own. Sometimes you put books in the dustbin and the trash on the shelf and laugh at your behavior a moment later when you find out what you have done. This is discrimination failure. Another mix-up includes program assembly failure wherein you put salt in the tea instead of sugar or you just do not keep the right things at the right place. The fifth one is the sub-routine failure wherein you go to the market to buy tea and instead come back home with coffee. The research proves one thing that if you are absentminded, it does not mean that you have a bad memory or can suffer from dementia as is widely publicized in the media. It is perfectly all right to forget or being an absentminded person. Sometimes the incidences of absentmindedness can increase due to fatigue. A good sleep and rest can fix the problem easily.
5 tips to reduce your salt intakeSalt is an inevitable part of our food, but added salt has harmful effects on the body. The list of benefits in reducing sodium/salt intake in our diet runs long, ranging from lower blood pressure, in turn leading to reduced risks of heart disease, obesity, and diseases of the kidney. The daily sodium intake of an individual should not exceed 1500-2300 mg per day (a table spoon of salt approximately), and this needs to be maintained in the salt added to our food, including the processed food and drinks we buy. Sodium, an indispensable component of our diet, is consumed in excess by most of us. Follow the tips, as mentioned below, to curb your daily salt intake. Avoid added salt. Do not add salt to already cooked food while eating. Keep a diary and make a list of foods with salt in them that you eat daily. Do not forget to add pickles, spices, papads, salted biscuits, and salted nuts. All of these are highly loaded with salt. Next time you go shopping read the labels. Choose low-salt options-sauces, crackers, khakhra, instead of papad. Make an attempt to eat less canned and processed foods. Choose fresh fruits and vegetables over processed food. Eat less bread. Each bread slice has about 250 mg of sodium. Do not mistake bread to be healthy. Next time, keep this in mind when you go out to eat pizza. Pizza base is like bread. While cooking food, make it a point to add salt only towards the end in the recipe. This way you will need to add lesser salt. Sodium content of some foods Bread (one slice) - 250mg Cheese pizza: 450 - 1200mg Tomato soup: 350 - 1000mg Potato chips: 100 - 150mg
5 cardinal sins for the skinWhile cigarettes may not constitute food in the strictest sense, it does have a profound effect on skin complexion, health, color and tone. We eat that we may live, but sometimes we eat way too much and consume stuff that may be extremely hazardous to our health. Since we are talking about skin, here are 5 most hazardous foods for your skin: Grease adds to the crease Since healthy skin is all about healthy blood circulation, any food which is likely to clog up the blood vessels internally is deemed bad for skin tone. Packaged snacks like potato chips may have edible oil written in bold but this contributes significantly to the slowing down of 'collagen and elastin syntheses' which in turn causes the skin to appear aged and all wrinkly. The french fries that we consume as a TV snack can also cause an acne outbreak on the skin and face. Gluten Glutton Gluten is a substance found in wheat and other food grains. We may not even be aware that some of the food grains have gluten as a main constituent. Gluten intolerance can also cause inflammations on the skin in the form of rashes or acne. Bad news is that the pizzas, pastas, cakes and bread that we get off the rack may be heavy in gluten (Surprised that they don't say that on the pack) and that may be the reason for you to lose precious skin tone. So seek gluten free foods, though that might not be the easiest of tasks, but for your skin, it certainly will be worth it. Caffeine - the skin coffin If you are one of those coffee addicts then you may as well write an obituary column lamenting the loss of your skin tone and complexion. It's not without reason that health freaks love bashing coffee beans and caffeine rich beverages, as they are truly hazardous. How? Studies have proven that just 2-3 cups stimulate pituitary-adrenocortical response. Yes, but what does that have to do with your skin? Well this leads to the hormone cortisol to increase in our bodies. Cortisol is known as the stress hormone! So now here's what it does to your skin -it accelerates the ageing process which means wrinkled skin and causes dehydration causing the skin to show an unusual pallor. So before you turn the coffee faucet on think twice. Fad to Black How fad diets are not skin friendly? Some people go on a high protein, low-carb diet which could sound the death knell as far as complexion goes. Dieting depletes calcium levels, which means your bones are going to suffer and what's the point of having skin on bad bone density? Besides low-carb diets can utterly wreck the complexion as the delicate PH balance in the skin is ruined. Some of the meat, poultry and dairy products too can have artificial chemicals injected in them which cause a hormonal imbalance in our bodies leading to skin disasters. Fruits and vegetables have chemicals injected too sometimes! Beware! Cereal Killers Cereal killers are those people who ignore the need of a proper diet for skin health. So anybody who indulges in too much sugar, caffeine and greasy food stuffs is a 'Cereal Killer' A lack of cereals in the diet can literally kill your skin. Cereal foods have high fiber and antioxidants for moisturizing the skin and protecting it from skin damage. For great skin other than cereals which are simply fabulous for keeping skin hydrated and breathing easily, one can eat fruits, olive oil, healthy fats, almonds, tofu, grains, nuts and the good old vitamin B rich products. Ceramides in raw food diets, organic foods, wheat germ and brown rice protect the epidermis of the skin and make it impervious to external attacks and pollutants while maintaining their tone and beauty.
Hypertension and Vitamin DVitamin D is one of the essential vitamins that are required for strong and healthy bones. The body synthesizes it in the skin from cholesterol when there is adequate exposure to sunlight. Over the past decade, vitamin D has been intriguing medical researchers the world over. Several studies were conducted and interesting results found. One of them being that vitamin D may be implicated in influencing blood pressure levels. As per studies conducted, it was found that low levels of vitamin D lead to high blood pressure levels. People living in high altitudes where sunlight is at a minimum level were found to be hypertensive. Also, the winter season showed an increase in hypertension cases which was again attributed to the low sunlight levels. What exactly does vitamin D do to affect the blood pressure? Renin is an enzyme secreted by the kidneys that constricts the blood vessels and increases the blood pressure. Vitamin D acts by inhibiting this renin. Insulin resistance causes high blood pressure, which is why hypertension often has co-morbidity with diabetes mellitus. Vitamin D helps in improving the body's sensitivity to insulin. Calcium deposits on the arterial walls harden them and make them lose their elasticity leading to an increase in the pressure of blood flowing through them. Vitamin D helps the body to better absorb and metabolize the calcium. The role of vitamin D in strengthening bones is very clear. Though the studies have shown that people having deficiency in vitamin D tend to develop hypertension, the role of vitamin D in this case is still not very clear. Also, whether vitamin D supplements help in lowering blood pressure levels is still to be found out! But all said and done, the research findings cannot be ignored. Moreover, a morning walk is beneficial in many other ways as well! So, get up early, put on your walking shoes and say Hello to the sun! Vitamin D alone will not help you control your BP. You need to keep taking the medications along with the other dietary and life-style changes! An early morning walk is a blessing for the whole day!
All you need to know about angioplasty!Why would you need coronary angioplasty? The walls of the arteries are being constantly lined with a fatty material called plaque. This plaque increases in certain conditions like atherosclerosis. When the build-up is too high, the artery gets blocked and the subsequent tissue receives very less or no blood, causing it to die. The plaque at times may be dissolved by medicines but if it is too big, medicines prove ineffective. This is manifested outwardly as a heart attack. This is the time when the doctor would recommend the coronary angioplasty as a treatment for you. How is it done? A thin catheter with a deflated tiny balloon at one end is inserted into the affected artery. Once the exact location of plaque build-up is reached, the balloon is inflated causing the plaque to get pushed against the artery wall and creating free space for the blood to flow. A small mesh called a stent may be placed to hold the artery in place. Some stents are coated with medicines that prevent the scar tissue formation following the angioplasty procedure. The procedure may be done as an emergency or it may be planned. If it is a planned procedure: You will have to get hospitalized and stop eating or drinking 6 to 8 hrs before the procedure. Once the procedure is done, the doctor would prefer you staying in the hospital overnight to watch for any adverse events that may happen. What happens after the surgery? The surgery lasts for 1 to 2 hours and you would be allowed to go home the next day. You will be advised not to undergo vigorous and strenuous exercises and to rest adequately. Most people are fit to return to work a week after the surgery.
Sex during pregnancy? It's possible!One of the questions that arise when a woman gets pregnant is whether it is safe for the couple to have sex. We'll try to answer the most common questions couples tend to ask. Is sex safe during pregnancy? Sex is considered safe if the pregnancy is normal in all stages. However, even if it is safe, it doesn't mean the woman would want to have it. Desire for sex fluctuates during the various stages of pregnancy and sex becomes plain uncomfortable as the body gets larger. What is not safe? Two types of sexual behaviors are not safe during pregnancy. While having oral sex, the man should not blow air into his partners' vagina. It can lead to air blockage of blood vessels by an air bubble, which is called air embolism, and can be lethal for both mother and baby. The pregnant woman should strictly avoid sex with a partner with unknown sexual history or who may have a Sexually Transmitted Diseases (STD). What are the common risk factors? In case of significant complications with pregnancy, abstinence from sexual intercourse is advised. Common risk factors can be: Threat of miscarriage. One can have pre-term labor or signs indicating the risk of pre-term labor (such as premature contractions). Unexplained vaginal bleeding, discharge, or cramping. Leakage of fluid surrounding the baby, called as amniotic fluid. Placenta previa, a condition in which the placenta (the cord connecting mother to the baby and nourishes the baby) is located low down and covers the opening of the uterus. Cervix incompetency, a condition where cervix is weak and dilates before full term, increasing the risk of miscarriage or premature labor and delivery. Can sex during pregnancy harm the baby? The baby is always protected by the amniotic sac (a bag-like structure that holds the fetus and surrounding fluid) and uterine muscles. A thick mucus plug seals the cervix and protects the baby from infection. The penis does not come into contact with the fetus during sex. So, sex can't harm the baby directly. Can orgasm lead to miscarriage or contractions? The contractions felt by pregnant women during and just after orgasm are totally different from the contractions of labor. Therefore, in cases of normal and low-risk pregnancies, orgasm can't cause contractions and miscarriage, but always check with the doctor and make sure that your pregnancy is in the low-risk category. What are the safe positions for sex during pregnancy? The old standby missionary position for intercourse may not work for you now. Instead, try these options: Spooning: Lie side by side with him behind you. This will not put pressure on your belly, and makes for more shallow penetration. Female on top: There's no pressure on the belly, and the female can control the speed and depth of penetration. Side of the bed: The female lies on the back on the edge of the bed with knees bent and feet on the edge. The male stands facing her. It's like classic missionary, but the male won't be resting his body weight on the pregnant female. However, remember 'normal' is a relative term when it comes to sex during pregnancy. You and your partner need to discuss what feels right for both of you and take advice from the doctor.
Your questions about contraception, answeredFew couples want to have babies as soon as they are married. Most want to enjoy their sex life without having to worry about conceiving a child in the process. If you are in this group, then here are answers to the most commonly asked questions about contraception. What is contraception? Contraceptionis use of various methods to control and prevent the pregnancy. It allows you to choose when you want to have a baby. What are the various methods of contraception? There are two main methods. Temporary contraception: Caps, combined pills, male condoms, female condoms, contraceptive implant, contraceptive injection, contraceptive patch, diaphragms, intrauterine device (IUD), intrauterine system (IUS), natural family planning, progesteron-only pill, vaginal ring. Permanent contraception: Female sterilisation(tubectomy), Male sterilisation (vasectomy). No contraceptive is 100% reliable and some can have side effects. Find out about all the methods listed here, so you can decide which method is right for you. How soon can I conceiveafter stopping the birth control pills? It is difficult to predict exactly how long it will take for a woman to start ovulating again. Some women are fertile as soon as the pills are stopped and others might take couple of months. Once the periods return and are normalised with normal ovulation, you can conceive a child. What if my period doesn't resume after I stop taking oral contraception pills? If you don't get your periods for several months, you may have what's known as post pill amenorrhea. The pill prevents your body from making hormones involved in ovulation and menstruation. When you stop taking the pill, it can take some time for your body to return to normal production of these hormones. Normally, periods should start again within three months of stopping the pill. But some women, especially those who took the pill to regulate their menstrual cycles, may not have periods for many months. If you don't have a period within three months, take a pregnancy test to make sure you're not pregnant, and then see your doctor.
FAQS
T&C FAQS