Home
Sunshine for busy executivesMost people working in corporate offices, spend long hours within the confines of concrete buildings. Some business sectors like IT and manufacturing even have their employees working in night shifts. What we don't realize is that, in such a setup, our bodies do not get adequate dosage of sunlight. Lack of exposure to sunlight is responsible for a range of diseases and health conditions. The body requires sunlight just as much it requires food for its nourishment. Long hours of work in glazed business buildings under artificial lighting, deprive the body of this most basic need, thereby creating a deficiency of the vitamin D group. This deficiency then goes on to create several imbalances in the body, and contributes to diseases. Besides these, Vitamin D deficiency can also cause general muscle weakness, muscle and bone aches and pains and osteoporosis, due to the inability to utilize calcium. The best source of Vitamin D is natural sunshine, and that's why it is called the sunshine vitamin. Vitamin D can be had in the supplement form too, but it is still no match for natural sunlight. In a paper titled 'Vitamin D Deficiency' published in The New England Journal, M F Holick writes that, arms and legs should get exposure to sun for 10-15 minutes every day. "The amount of vitamin D produced depends on the intensity of the UVB in the sun and many other factors. Darker-skinned individuals may need 5-10 times more exposure than a fair-skinned person, in order to make the same amount of vitamin D." Tap that sunlight Early morning is the best time to get out in the sun. There's no better time to get that walk, than in the morning. Park your car a little away from the office building if possible, and walk to your office in the sun. When you take a tea break in the evening, head outside, instead of going to the in-house cafeteria.
What causes male balding?They say there are 3 types of men: the ones that go bald at the top are thinkers, the ones who go bald at the back are lovers, and the ones who grow bald at both places... only think they are lovers. If pregnancy and menstruation are a female's burden, then baldness is a great inconvenience to men. Some men lose their hair in their youth and thus lose their confidence along with their hair. So what is with baldness and men? Men start having a receding hairline by the time they hit 30, though it could begin in their 20s as well. The most common type of baldness is the mid-frontal type resembling a horseshoe. Earlier it was thought that baldness is caused only by genetic factors, but apparently emotions, lifestyle and diseases also contribute largely to hair loss and baldness. This hair loss can be temporary or permanent. Some medications like anticoagulants, antidepressants, antifungal medicines, chemotherapy etc can cause baldness. Certain diseases like thyroid disease, Crohn's disease, lupus can cause hair loss and baldness. Poor nutrition is an important factor in hair loss. Vitamin and mineral deficiencies along with poor nutrition can pave the path sooner than most other things. Then there are some conditions like Alopecia Areata which cause baldness in patches -- on the head or beard. It is temporary and the hair grow back in about 6 months to 1 year. Corticosteroid injections are used to treat the condition. Air and water pollutants, environmental toxins, conventional styling products have the potential to build up on the scalp. These affect hair cuticle, cause dryness, and weaken the hair causing them to easily break off before their natural lifecycle has ended. If you notice your hairline receding more than usual, then check if you are getting enough nutrition. Exercises like the headstand and handstand send the blood rushing to the scalp and can help with hair growth. Massaging the head with warm oil helps to increase blood circulation as well. Use a shampoo that suits your hair along with a conditioner. Oil your hair overnight at least thrice a week. Keep yourself well hydrated and try vitamin C which can help arrest hair fall. Use a clean comb and ensure that you sun your scalp, as vitamin D is an essential tonic for skin, bones, teeth and even hair.    
Pregnancy myths bustedChances of getting pregnant each month gets increased by 50% in the women of the age of early 20's: This not right, for a women to get pregnant is not easy. When a woman is below 25 the chances of hitting baby bingo are only 20 to 25 %, while the women above 35 years of age the chances are 15%.   The baby's gender could be understood by the shape and size of the belly. It is believed that woman carrying a girl has high belly: False again. The shape of belly depends on original shape of the abdomen, amount and the distribution of the fat, strength of the abdominal muscles, the number of babies conceived and the position of the baby... but in no way possible can the shape or size of a belly give away the sex of the baby inside.   The best fertility lubricant to be used for conceiving is saliva: This is totally wrong, actually saliva is the sperm killer, most of the lubricants and massage oil are also not good for fertility, so it is better to go without using any lubricant.   Sperm production is impaired by laptops: This is true. Heat is not good for male fertility when laptops are used on laps they may generate heat and affect the fertility. So it is good to use the laptops as desktops.   The conceiving period of most of the couples is 3 months: This is not right, most of the couples take about 6 - 12 months of active efforts to conceive if they are not having any fertility problems.   There are more chances of conceiving, if you do more sex on the fertile days: This is true, the man having normal sperm count to have sex during her partners fertile days is good for conception. Having everyday sex was suggested in earlier days but anything which is done in excess is always more.   The egg can be fertilized within two days after it is released: This not true, an egg has the shelf life of only 12 to 24 hour, and the sperm have to meet with egg within that time, though it has the shelf life of 3 days or more.   Position during conception matters: This is not true, the sperms which are healthy are good swimmers, they can make you pregnant in any condition.   Eating oysters is good for getting pregnant: This is true, oysters are the good source of zinc, which is the most fertile mineral, it is also a good booster for libido, it can be used by both sexes.   Having cough medicine is good for getting pregnant: This is true, cough expectorants loosens up the cervical mucus as it does with the mucus in the chest, and the looser cervical mucus gives the sperm an easier and faster way to get pregnant. But some cough medicines contains an antihistamine that dries up all the mucus, which makes for a difficult swim for the sperms.   The sex of the baby is known by the glow on the face of the mother: This is not true, as the morning sickness of the mother is stopped, she starts eating well, the blood circulation also improves and in general the mother feels good, which gives the glow on the face. There is no relation between the glow on face and delivery of a baby.   The baby having lots of hair causes heartburn to their mother: Completely false, heartburn is the common complaint of the mother during pregnancy, this is due to reflux in oesophagus, in this the food particles come up through the food pipe and due to its acidic nature it causes heart burn. There is no relation between baby having lots of hair and heartburn.   The food intake of the pregnant woman should be doubled, for baby and the mother: This is not true, the pregnant woman, should take a balanced nutritious diets containing ample of proteins, vitamins, and minerals, small meals should eaten for every two hours rather than eating only 3 times the bulky meals.   Labor can be induced having sex during pregnancy: Not true, if the woman is physically fit during pregnancy can have sex as advised by the doctor only the position during sex should be taken care of, it should not cause discomfort to the woman.   Regular breastfeeding is a barrier for getting pregnant: Again a myth, the women can get pregnant even in the lactational ammenorrhea before the first menstrual cycle. You should always use contraception to avoid pregnancy.   Using computer during pregnancy can harm baby: This is not true, there may be backache if you continuously work for a long time on computer, but there is no direct effect of computer on the baby.   Source: What to Expect Before You're Expecting
Ageing gracefully and happilyEverywhere we look there are constant reminders that we are growing old each passing day. There are creams that tell us that will make our wrinkles vanish and make us look younger. There are hair care products dyes that claim to cover our grey hair so that we can look and feel young. Our doctors tell us about how we have to take care of all our body parts to keep several diseases at bay in the old age! It is a rare and difficult attainment to grow old happily and gracefully. Is there anything good about old age? It doesn't seem so, going by the look of things. Here we give you 5 reasons that will make you look forward to old age! Old age is the happiest time in life: You are constantly living life to the fullest when you are young. Survival is your prime priority. You work hard to keep yourself and your family happy and financially stable. Too many responsibilities bog you down. Old age is the time when there is nothing of this sort. You are retired, free from all responsibilities. You have passed the baton to the younger lot. Now is the time to sit back and enjoy. Now is the time to relax and do the thing you always wanted to do. Imagine living with not a care in the world? That is old age for you. Old age is when the brain functions the best: It is a proven fact now. It was believed that we lose more brain cells as we age. Now it has been proven that our cognitive functions peak between the ages of 48 to 60. Old people make the wisest and toughest decisions quickly. People may call them worldly wise. Have you ever given a thought to how all the judges are old men? And how when someone says the word 'wise' the picture formed is usually of an old man with a beard? No more fashion policing: When you are young, there is a lot of stereotyping involved! Going to a board meeting, wear formals? Going for a lunch meeting, wear something that is suitable keeping in mind the place. Are you at a certain position in life? Dress accordingly! So many restrictions! Old age comes with none of this. You can wear what you please and no one will really mind! Only when you actually get to do it will you realize how much f a relief it is! Relationships improve: According to a 2011 study; married oldies are more satisfied and positive about their marriages than young couples are. Arguments involve less anger, and senior spouses show more positive emotions and affection than middle-aged couples. It's not only marriages, however, that benefit in older age. Seniors also seem to be happier with their other social relationships too. They have a smaller but closer circle of friends and gain more benefits from these close, emotional bonds. Old Age makes you feel better on the whole: You have lived life to its fullest, your kids have now flown the coop and you have seen it all. As you age, you start feeling better about things in general. You look at things more positively and make the fullest of every situation presented to you. You live in the moment and are not worried about future repercussions. Old age is a happy place to be. Look forward to aging positively.
Avoiding nappy rash - A few words of adviceNappy rash is a skin condition that takes its name from the nappy in which a baby is wrapped. It is a reddish rash, or tender skin around the buttocks and inner thighs of babies, which occurs due to prolonged wetness from either urine, or stools, or both. Nappy rash may be in the form of an unusually tender bottom on a child, or an inflammation around the genitals, and inner thighs, or folds of the skin. It generally occurs in really small babies, less than a year old. Most times, nappy rash is not a very serious condition, provided care is taken. No matter what type of nappy you use, whether promising complete dryness, or absorbent nappies, your baby is likely to develop 'nappy rash' at least once. The rash can make the baby feel uncomfortable, and cranky as a result. Steps to avoid nappy rash: Always ensure that your baby's bottom remains dry by changing nappies at regular intervals. Use a mild medicated baby soap which will help in keeping the skin around the inner thighs and buttocks soft. Give your baby some nappy free hours. You will be the best judge to know when she is likely to have comparatively dry spells, which can allow the skin and parts below the waist some breathing space. Regular bathing should take care of most rash related problems. Use an emollient, or medicated soap for bathing. Sometimes, nappy rash is a result of a thrush or yeast infection. The baby's resistance at these times is low so that it allows the yeast to thrive in the form of ugly red patches. Always show a medic to rule out the possibility of bacterial infections. Anti-fungal creams should also take care of normal nappy rashes.    
Afraid of the dark? understand your fear and cure it!Scotophobia, more commonly known as Nycotophobia, is a psychological illness, where the patient is afraid of the dark. Children are more prone to this fear, though it does affect quite a few adults as well. The dark often represents insecurity and uncertainty to children, and it symbolizes their entrance into an unknown territory. If the children are alone during their first few encounters with darkness, the absence of parents (who exemplify safety), tends to amplify this crippling fear. While most of us do actually possess this fear in relatively small amounts, as we grow up the fear diminishes. However, there are those of us who might carry this fear of the dark into their adulthood and in such cases, the fear is usually accompanied by quite a few intricate issues. People often tend to externalize a set of conflicting feelings about a certain situation, towards something else. For instance, you might be worried about your children; but your mind may externalize this fear, via your inefficiency at work. This process is called externalization. So, when it comes to the root of your fear of darkness, it is possible that at some point in your past, you experienced something untoward, which through externalization, inculcated this fear of darkness, deep into your psyche. Evolutionary Ties to Darkness: Many scientists have pointed out that this phobia might be linked to the process of evolution. Since predators hunt for their prey at night, we might have inherited this fear of darkness from our ancestors, who believed that darkness was a space where they could be attacked by wild animals. However, recent studies have shown that  Scotophobia begins at approximately the age of two in children, and thus, it cannot be said to be innate to us. In a study done by Ryerson University involving over 90 students, it was found that people who are afraid of the dark, are more likely to be poor sleepers, than those who are not afraid of it. More interestingly, it was discovered that any kind of noise made while the people with this phobia were asleep, frightened them the most.. Symptoms of Scotophobia: The first symptoms of this fear are the resistance to visit dark places and the yearning for company when such situations arise. However, many a times adults who are suffering from this fear, do not reveal it due to the added fear of embarrassment and this, sometimes, results in outbursts of rage when they are forced to go out for an event at night, or to confront the dark under any such circumstances. A person battling this fear may experience panic attacks, sweating and trembling prior to, or while staying in the dark. The blood pressure also rises, accompanied by chest pain and lastly, a difficulty in breathing. Diagnosis of Scotophobia: In children, this fear can be easily verified by their behaviour. However, adults might require further assistance, due to their natural resistance to openly admit to such a fear. Scotophobia can be diagnosed through a comprehensive psychiatric evaluation. Following this, your psychologist would be able to give you an idea of the source of your fear as well. Pursue a course of treatment immediately after the discovery of the phobia, which will ensure a faster and more effective recovery. Treatment of Scotophobia: The process of 'desensitization' is most commonly used to help with such a phobia. In this form of treatment, the patient is slowly exposed to the object of fear, in a situation where she/he will not feel vulnerable. This is done by asking the patient to confront the dark along with another individual who symbolizes safety for him/her. This could be a parent or a friend. Night lights can also be installed to gradually reduce the fear. You may try certain breathing exercises, which will reduce the panic attacks that accompany this fear. Hypnosis has also been said to be very effective in dealing with this phobia. If your psychologist sees fit, you might be also prescribed some medicines; antidepressants are given in some cases. Joining a self-help group is also a good option, in addition to your psychological treatment.  
Sunburn: Overview and treatmentSunburns could also be accompanied by allergic responses to medicines, exposure to sun and sunscreen products, sight-related issues like reduced or complete loss of vision, as well as heatstroke. Over a long period of time, frequent cases of sunburn can result in cold sores, cataracts, skin cancer, and lupus.  The factors which will decide the vulnerability to sunburns are: Type of skin - The type of skin determines the vulnerability and intensity of the sunburn. The most vulnerable groups are those with freckled and fair skin as well with blonde or red hair. Regardless of the color of the skin, all skin types are vulnerable to skin cancer and proper sun protection must be used during times of sun exposure. Season - Summer days carry with them a higher probability of burning the skin. UV Index - This refers to the forecast of the strength of UV light on a particular day. This will let you know the cautionary measures you need to take in order to avoid skin damage. This is put forward on a scale of 0 to 11+ with 0 being the lowest exposure. Latitude - As you move to locations closer to the equator, the sunlight directly passes through the atmosphere to a greater extent. Age - Those who are younger than 6 years of age and those over 60 years are at a greater risk of getting sunburns. Altitude - As you climb higher and higher, the chances of sunburn are also greater since the amount of Earth's atmosphere to keep away the sunlight reduces. Every elevation of approximately 1000 feet, the UV exposure is amplified by about 4%. Location - If you are close to reflective surfaces like snow, water, ice, concrete and white sand, rays of the sun which get reflected off these might harm you. Time of the day - The rays of the sun are strongest between 10 in the morning and 4 in the evening. Though, the probability of getting sunburn are lower on cloudy days, it is possible for the UV rays of the sun to pass through the clouds and negatively affect your skin health. Here are the precautionary steps you can take to avoid getting sunburn: Avoid staying in the sun for a long period of time. Make use of sunscreen and choose clothing which cover your skin. In case you are suffering from sunburn, here are ways to treat it: An over-the-counter pain reliever: In order to lower the inflammation and relieve pain, use ibuprofen or aspirin. Anti-inflammatory condiment: Cortisone cream and aloe vera are two primary ways of reducing the inflammation. Cool bath: Take bath for about 10-20 minutes in water of cool temperature (make sure the water is not too cold). This will cut back the pain and irritation in affected area.  Do not use any bath oil, soap or detergent as this might increase the chances of allergic reactions and irritation to the injury. When drying yourself after the bath, do not rub with towel. Cold compressions: Try application of cold and wet compressions on the concerned region for about 20-30 minutes. Adequate hydration: Make sure you drink at least 8-12 glasses of water to help your skin to recover from the sun damage. Moisturizer: Once your skin begins to heal, use a gentle moisturizer without any scent. Blister treatment: In case you have blisters, do not try to pop them. This will lead to infection and marks.However, if you have large blisters which require to be drained, then pop them using a sterilized needle. Follow this by cleaning the area dry with gauze. After applying ointment to the area (Aloe vera or antibiotic ones like bacitracin and polymyxin B), wrap the area loosely using a gauze bandage. Make sure you do not tie it tightly and change the gauze daily to avoid infection. Medical attention: In case you feel nauseous along with fever, rashes and chills, then make a visit to the doctor. The following symptoms also require you to seek medical attention immediately: Pain in eyes with sensitivity to light, dizziness, high thirst without proper urination, painful blisters, and pale/cool skin.
Arthritis friendly workoutsRheumatoid arthritis is more common in women over 60, and is the inflammatory type of arthritis where the synovial fluid functioning is disrupted. The synovial fluid maintains the health of joints, bones, and cartilages. Osteoarthritis is the most commonly occurring type in both men and women, and in this type there is gradual wearing away of the bone cartilages, which, in turn, causes stiffness, and pain in the muscles, joints and tendons. There is a classic catch 22 situation in arthritic patients and that is they avoid exercise or are advised extreme caution while exercising. The pain and soreness which comes from exercising can be extremely discouraging, so some shun exercise altogether. Now, the lack of exercise is going to precipitate the condition further, and could even increase the soreness, and lead to deformity. This is what challenges most arthritic patients. Should someone with arthritis be allowed to exercise? And if yes, then what type of exercise will prove to be most beneficial? Main question is: Are there any arthritis friendly workouts? Doctors now recommend that exercising could actually work wonders for arthritis patients. The right method and type of exercise can help ease the inflammation and soreness of the joints, and build overall health, strength and flexibility of the bones, and joints as well. What would be a good exercise routine? The arthritis foundation recommends routines which exercise the flexibility of the joints, and build muscle mass, for better shock absorption, coupled with physical endurance should be specially designed for arthritics. Regular walking: Walking is a great exercise for arthritics. Walking at a steady pace for about 30 minutes, thrice a week, can help keep the limbs active, and could reduce the swelling at the knees, and hip joints. Warm up is absolutely essential in any work out, and here it is of paramount importance that you go through a warm up routine before you begin your walk. Simple leg raises, hand to toe stretches, and light back bends can be done to warm up the muscles and joints for your walking activity. That will also reduce the possibilities of strain or sprains of the ankles along the way. Choose your exercise route to ensure that you don't walk up a gradient, and put unnecessary pressure on your knees and ligaments. Aquatic Exercises: Exercising in water is perhaps the best possible alternative, as water is absolutely low impact. This is great for arthritic patients to reap the benefits of a swimming pool workout. The easiest for chronic arthritis patients would be to simply walk, or wade in water for about 20-30 minutes. This can help greatly with building strength, and endurance in the extremities. For enhancing co-ordination you can even try walking backwards in water, or simply float and relax the body. Avoid water which is too cold, as that might adversely affect your condition. Stretching and Yoga: All easy stretches for the limbs and joints will be helpful to facilitate ease in movements, and dealing with joint pain. Standing leg raises, shoulder raises, wrist rolls are exercises which can be done quite easily, and can help keep the body supple. Though yoga also enhances flexibility, it goes way beyond just that, and actually aims at harmonizing the life force in the internal and external organs as well. No matter what type of exercise suits you, always remember: Proper warm up exercises are a must for the arthritic patient, as that can help reduce, and eliminate the possibility of injuries while working out. Do not force your body into an exercise regimen, if you are experiencing pain. It is quite ok to take a day off if the joints are sore. Get into an exercise routine slowly as your body might take a little longer to recover from it. Always seek the advice of an expert or a doctor before making any alterations to your regimen.
Flash the pearliesRemember the lines from the song, Words? Smile an everlasting smile, a smile can bring you near to me.  Well, ideally, you wouldn't want your teeth to be yellow when you flash that smile. So for those who have shades of yellow on their teeth, here's how you can go back to white. It's first important to understand what causes yellowing of the teeth. Eating habits: Carbonated drinks dissolve teeth enamel. Tea, coffee and other caffeinated drink stain the teeth yellow.In addition, alcohol and cigarette smoking too can stain teeth. Tobacco chewing especially produces stains that are difficult to remove.Food rich in artificial sweeteners are harmful for teeth. They not only make the teeth yellow but also produce cavities. Chocolates, pastries, ice-creams and all such sugar-rich foods are sticky. They stick to teeth and have corroding effect on tooth enamel and dentin and cause yellow teeth, decay and toothache. Oral hygiene: Poor hygiene of oral cavity leads to stains and caries. Take good care of your teeth. Brush teeth twice. Floss them and use a mouthwash. Ageing: Gradual loss of enamel and wear and tear lead to yellow teeth. Medicines: Medicines like iron tablets, tetracycline too can lead to yellow teeth. Injury: Trauma to teeth can sometimes lead to yellowing. This is common amongst kids. Preventing yellowing of teeth Maintain a good dental hygiene. Brush twice for atleast 3-4 minutes. But be gentle while brushing teeth. Gargle every time after you eat.This removes the leftover food particles and keeps the teeth clean. Avoid use of local powders or corrosive substances. They damage enamel. Fruits like apple, cucumber, and carrot act like cleansing agents and keep teeth clean. Fruits like sweet lime are rich in vitamin C and help to keep gums and teeth healthy.
Treating sore throatTest and diagnosisPatients with sore throat are examined by ENT specialists. At first, the doctor performs a local examination of throat. Clinical examination usually guides the doctor towards diagnosis. Although in order to confirm the diagnosis, the doctor may ask for culture and sensitivity test of the throat swab. Treatment Home remedies: Mild cases of sore throat are usually cured by home remedies. Following remedial measures can be adopted at home: Warm saline gargle – Gargle with warm saline water helps to relieve the discomfort and irritation of the throat. Half to one teaspoonful of salt is added to one full glass of warm water and the patient is advised to gargle. This process may be repeated 3 to 4 times a day to have a soothing effect on throat. Additionally, smoking and use of other tobacco products must be avoided. The patient must drink adequate amount of fluids. Warm liquid and semi-solid food must be consumed to provide a soothing effect on the throat. Cough lozenges to help relieve irritation and pain in the throat. Seeking advice of the doctor: If the signs and symptoms persist and are not adequately controlled by home remedies, the patient must seek advice of a specialist doctor. Viral infections usually do not require treatment. They are usually cured in 5 to 7 days. Bacterial infections require treatment as per the advice of a specialist doctor. Bacterial infections may require treatment by antibiotics. The treating doctor selects an antibiotic which is suitable for the patient depending on factors such as the age of the patient, report of the culture and sensitivity of throat swab, previous drug history of the patient, etc. Antibiotics usually effective in bacterial infection with sore throat are from the group of penicillins, cephalosporins, and macrolides. PreventionViral and bacterial infections are contagious. Good hygienic lifestyle and habits help prevent infections. Following things to be noted are: Frequent and thorough hand washes before consumption of food, after using toilet, and after sneezing and coughing. Use of a hand sanitizer during consumption of food outside home. Avoid sharing food and drinks from same glasses and utensils. Use a tissue paper or handkerchief while sneezing and coughing. Avoid close contact with patients with sore throat. If sore throat develops, few home remedies may prove to be curative. If sore throat persists, advice of a specialist doctor must be sought.
What Is slowing down your sex driveBeing sleep deprived can lower the levels of sex hormones in your body. Are you feeling dull lately and wondering what happened to your sex drive? May be, the stressors in your life are also creeping on to your bed. Find out some of causes that could be the reason behind this. Lack of sleep: Hectic work and busy life takes a toll on everybody. The first hit is your sleep - the hours go down, the quality reduces and the effects are insufficient. Sleeping six hours or less can push down the levels of testosterone in the body. Testosterone is the hormone that influences sex drive for both men and women. Though it is primarily a male hormone, it is also present in small quantities in all women and drives their sexual desires. Emotional problems: Stress, tensions, depressions, irritability, anger are negative emotions that lower the sex drive. Try not to bring the work pressures home. Marital problems or relationship issues may be hampering your bond with the spouse. Weight gain: Being overweight makes you lazy, tires you easy and decreases your self-confidence, especially in bed. When someone is not comfortable with his/her body image, it affects their sex drive. The pill: If the wife is on the contraceptive pills. The period of ovulation is the time in a menstrual cycle when there is a surge of testosterone in a woman's body. During this period, she experiences a strong sexual desire. The pills regulate the hormonal activity and reduce the sex drive to some extent. Alcohol: If you are feeling a little tipsy, be prepared to pass out and fall in deep sleep as you hit the bed. No scope for sex drive here. In the long run, increased consumption of alcohol can affect erections and make you generally dull. Diabetes Mellitus: Uncontrolled high blood sugar levels lead to impotence in men and dryness of the vagina in women. It also increases the risk for urinary infections. This results in lowered sex drive. Medicines: Some medicines like the anti-allergic ones and the antidepressants reduce the sex drive. Don't let complications of life affect the intimacy in your relationship.
FAQS
T&C FAQS