Showing posts with label obesity. Show all posts
Showing posts with label obesity. Show all posts

Thursday, October 24, 2013

The obesity epidemic

The obesity epidemic - The Hindu var _comscore = _comscore || [];_comscore.push({ c1: "2", c2: "11398210" });(function() {var s = document.createElement("script"), el = document.getElementsByTagName("script")[0]; s.async = true;s.src = (document.location.protocol == "https:" ? "https://sb" : "http://b") + ".scorecardresearch.com/beacon.js";el.parentNode.insertBefore(s, el);})(); Follow Today's Paper Archive Subscriptions RSS Feeds Site Map ePaperMobileApps Social SEARCHReturn to frontpageHome News Opinion Business Sport S & T Features Books In-depth Jobs Classifieds Shopping Bus tickets Education Plus Careers Colleges Schools Features» Education Plus» IssuesMADURAI,October 24, 2013 Updated: October 24, 2013 18:53 IST
The obesity epidemicKAMALA THIAGARAJANShare  ·   Comment  ·  print  ·   TweetTOPICS health physical fitness
health treatment diet (health)
illness obesity
As many as 135 million Indians are currently battling obesity and tackling related health issues. On the occasion of World Obesity Day (Oct 26), KAMALA THIAGARAJAN elaborates. In a country where excess is usually frowned upon and an estimated 30 per cent of the population live below the poverty line, you might find it difficult to digest the fact that millions of Indians are now battling the bulge and opening the lid on a Pandora's box of health issues. But this, according to Dr R.M . Anjana, Joint Managing Director & Consultant Diabetologist at Dr.Mohan's Diabetes Specialities Centre and Obesity& weight management centre, Chennai, defines the greatest Indian paradox. "Those who do the most activity on a daily basis eat the least and those who eat the most food, perform the least activity! This is perfectly normal when you think about how economics plays a role in obesity; the coolie who doesn't have access to quality food as a result of poverty must compromise on nutrition, whereas the sedentary white collar worker who sits around most of the day has access to a variety of fare."

Not a genetic curse: One of the biggest myths related to obesity today is that it is a genetic issue and no matter what the individual does, it remains a life-long problem. Another myth is that you're born with genes that somehow make you obese and that you're helpless when it comes to reversing it. "While it's true that some people may tend to gain weight easily, they don't have to go through life being overweight," says Dr Anjana. "Obesity can certainly be prevented and even reversed. Clearly, we are over-estimating our nutritional needs and consuming far more calories than required." Even 50 extra calories a day (which is a very conservative estimate, considering how people tend to consume far more) can add up to around 18,000 calories a year, resulting in an annual weight gain of around 2 kilos. "Over a ten year period, that can make you over twenty kilos overweight," says Dr Anjana. "If you examine family photos from ten years ago, you'll find that you can hardly recognize your own family members!" Since this weight gain happens gradually over a period of a decade, seldom do people notice it. "For this reason, obesity can be a very stealthy disease," says Dr Anjana. "Rather than being born with the affliction, it quietly creeps up on you."

While a sensible diet and exercise remain the cornerstones of obesity treatment, here are some immediate, practical steps you can take (with revealing facts that may surprise you).

The need for extra-vigilance during childhood: Does obesity run in your family? Then you'll need to be very vigilant with your children. This doesn't mean exposing them to restrictive dieting, but you will need to increase their intake of fresh fruits and vegetables and avoid junk foods like the plague. This is a reason for this, experts say. "Where your body stores its fat is pre-determined by your genetic make-up (which explains why one person might have excess abdominal fat while another who weighs the same might pack on the kilos along their arms and thighs), but the number of fat cells that we have are determined during the pre-pubescent phase of childhood," says Dr Anjana. "Being careful at this stage is important, because afterwards, it is extremely difficult to the rid the body of fat cells. When you lose weight, your fat cells are likely to shrink, but their numbers remain the same." Children who pack on more fat cells at this phase find themselves inevitably battling the bulge later on in life. "If your child is overweight, take small steps to encourage an increase their activity, weed out empty calories from their diets and ensure they get a balanced diet. Overweight children can most certainly become obese adults," says Dr Anjana.

Matching your intake with activity levels: You don't need to eat fancy, exotic or organic food to lose weight.The latest strategies in obesity treatment involve ensuring that your diet is suited to the kind of physical activity that you perform every day. If you lead a sedentary life, you'll need less food and vice-versa. "The importance of controlling portion sizes cannot be stressed enough," says Dr Anjana. "Hard and fast rules about dieting just never work, because these are difficult if not impossible to sustain on a daily basis. The first advice we give patients who are obese is to cut their portion sizes by half. This is a simple step that most people can do immediately. By decreasing quantity, you can still get the nutrition you'll need." This method also ensures that you ease into a weight loss programme, (without the hassle of having to prepare special meals with hardly available ingredients), enhancing the likelihood that you'll stick to it in the long-term.

Learning to train your appetite: While it's natural to feel a little hungry when cutting your intake by half, your appetite too can be 'trained' until eating the correct quantity of food that you require becomes a second nature. Experts say that it is possible for the stomach to 'shrink' as it adopts to its changing quantities of food.

If you find counting calories for Indian foods challenging, the illustrated food atlas priced at Rs 850 and available at Dr Mohan's Diabetes centers (http://www.drmohansdiabetes.com/patient_care/images/food-atlas/food_atlas_rs.pdf?cc_ref=IND-101&cc_code=ind) has a pictorial representation of popular foods and desserts from across the country, detailing the calorific value of the portion sizes that you see in the pictures. Just as in dress sizes, you'll instantly be aware of whether your appetite rates a S, M, L or XL in portion sizes and this will in turn help create awareness of the quantities that are currently being consumed.

Daily dose of Exercise: How much exercise should an obese person need in order to lose weight? According to guidelines set by the American College of Sports Medicine, at least 150 minutes (30 minutes, five times a week) of moderate-intensity physical activity is essential in order to prevent further weight gain or to lose a small amount of weight. However, for significant weight loss, you'll need at least 250-300 minutes (an hour, 5 times a week). Taking small steps will help you progress faster in your fight against obesity and onwards in your journey towards healthy living.

Keywords: World Obesity Day, battling obesity, Dr R.M . Anjana, Dr.Mohan's Diabetes Specialities Centre, obesity treatment strategies

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Friday, August 2, 2013

Child maltreatment increases risk of adult obesity

Child-maltreatment-puff

Children who have suffered maltreatment are 36% more likely to be obese in adulthood compared to non-maltreated children, according to a new study by King’s College London. The authors estimate that the prevention or effective treatment of 7 cases of child maltreatment could avoid 1 case of adult obesity.

The findings come from the combined analysis of data from 190,285 individuals from 41 studies worldwide, published this week in Molecular Psychiatry.

Severe childhood maltreatment (physical, sexual or emotional abuse or neglect) affects approximately 1 in 5 children (under 18) in the UK. In addition to the long-term mental health consequences of maltreatment, there is increasing evidence that child maltreatment may affect physical health.

Dr Andrea Danese, child and adolescent psychiatrist from King’s College London’s Institute of Psychiatry and lead author of the study says: “We found that being maltreated as a child significantly increased the risk of obesity in adult life. Prevention of child maltreatment remains paramount and our findings highlight the serious long-term health effects of these experiences.”

Although experimental studies in animal models have previously suggested that early life stress is associated with an increased risk of obesity, evidence from population studies has been inconsistent. This new study comprehensively assessed the evidence from all existing population studies to explore the potential sources of inconsistency.

In their meta-analysis, the authors were able to rule out specific factors which might explain the link – they found that childhood maltreatment was associated with adult obesity independently of the measures or definitions used for maltreatment or obesity, childhood or adult socio-economic status, current smoking, alcohol intake, or physical activity. Additionally, childhood maltreatment was not linked to obesity in children and adolescents, making it unlikely that the link was explained by reverse causality (i.e. children are maltreated because they were obese).

However, the analysis showed that when current depression was taken into account, the link between childhood maltreatment and adult obesity was no longer significant, suggesting that depression might help explain why some maltreated individuals become obese.

Previous studies offer possible biological explanations for this link. Maltreated individuals may eat more because of the effects of early life stress on areas of the developing brain linked to inhibition of feeding, or on hormones regulating appetite. Alternatively, maltreated individuals may burn fewer calories because of the effects of early life stress on the immune system leading to fatigue and reduced activity. The authors add that these hypotheses will need to be directly tested in future studies.

Dr Danese adds: “If the association is causal as suggested by animal studies, childhood maltreatment could be seen as a potentially modifiable risk factor for obesity - a health concern affecting one third of the population and often resistant to interventions.

He concludes:  “Additional research is needed to clarify if and how the effects of child maltreatment on obesity could be alleviated through interventions after maltreatment has occurred. Our next step will be to explore the mechanisms behind this link.”

Paper reference: Danese A & Tan M. ‘Childhood maltreatment and obesity: systematic review and meta-analysis’ Molecular Psychiatry 

For further information, please contact Seil Collins, Press Officer, King’s College London, Institute of Psychiatry. Tel: (+44) 207 848 5377 or email: seil.collins@kcl.ac.uk


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