Which is better exercising or dieting
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Now Reading: Diet vs. Share fbshare twshare pinshare Comments 0. Diet vs. By subscribing to newsletter, you acknowledge our privacy policy. Thanks for subscribing. Since working out stimulates growth of those metabolic tissues, losing weight through exercise means you're burning mostly fat. The number on the scale may not sound as impressive, but because muscle takes up less space than fat does, you look smaller and your clothes fit better.
Data show that to lose weight with exercise and keep it off, you don't need to run marathons. You just need to build up to five to seven workouts a week, 50 minutes each, at a moderate intensity, like brisk walking or Zumba. Resistance training helps, too. But don't just do isolated weight-lifting exercises like biceps curls—you'll get leaner faster by using your body weight against gravity, as with movements like squats, lunges, push-ups and planks.
And, of course, beyond burning fat, people shouldn't forget that exercise can have other impressive health perks, like improving the quality of your sleep, lowering your cholesterol and reducing your stress level. Talbott, PhD, nutritional biochemist and former director of the University of Utah Nutrition Clinic "As a rule of thumb, weight loss is generally 75 percent diet and 25 percent exercise. Until then, the notion that physical activity might help you lose weight was actually rather unfashionable in the scientific community — in the s, a leading specialist had persuasively argued that it was more effective to keep patients on bed rest.
Over the course of his career, Mayer's pioneering studies — on rats, babies and schoolgirls — demonstrated that the less active someone was, the more likely they were to be fat.
Mayer himself, the son of two eminent physiologists, and a Second World War hero to boot, became one of the world's leading figures in nutrition and most influential voices in the sphere of public health. As an advisor to the White House and to the World Health Organisation, he drew correlations between exercise and fitness that triggered a revolution in thinking on the subject in the 60s and 70s.
Each successive postwar generation was enjoying an increasingly sedentary lifestyle, and those lifestyles have been accompanied by an apparently inexorable increase in obesity.
Three in five UK adults are now officially overweight. And type II diabetes, which used to be a disease that affected you at the end of your life, is now the fastest-rising chronic disorder in paediatric clinics. But have we confused cause and effect? Terry Wilkin, professor of endocrinology and metabolism at the Peninsula Medical School in Plymouth, argues that we have.
The title of his latest research is: "Fatness leads to inactivity, but inactivity does not lead to fatness". Wilkin is nearing the end of an year study on obesity in children, which has been monitoring the health, weight and activity levels of subjects since the age of five.
When his team compared the more naturally active children with the less active ones, they were surprised to discover absolutely no difference in their body fat or body mass. That's not to say that exercise is not making the children healthy in other ways, says Wilkin, just that it's having no palpable effect on their overall size and shape. For one thing, Wilkin believes he has discovered another form of "compensation", similar to Timothy Church's discovery that we reward ourselves with food when we exercise.
Looking at the question of whether it was possible to change a child's physical activity, Wilkin's team put accelerometers on children at schools with very different PE schedules: one which offered 1.
But when they got home they did the reverse. Those who had had the activity during the day flopped and those who hadn't perked up, and if you added the in-school and out-of-school together you got the same. From which we concluded that physical activity is controlled by the brain, not by the environment — if you're given a big opportunity to exercise at one time of day you'll compensate at another. Wilkin argues that the environmental factors we tend to obsess about in the fight against obesity — playing fields, PE time in school, extracurricular activities, parental encouragement — are actually less of a factor in determining what exercise we do than our own bodies.
In other words, what physical activity you do is not going to be left to the city council to decide. It's going to be controlled, fundamentally, from within. His thesis has caused controversy among his peers — there have been cavils that his study sample is inconclusively small — and not all obesity experts appreciate the message.
Those who are saying it has no impact are neglecting a huge amount of the literature. I am suspicious of anyone who polarises obesity as one thing over another when there is strong agreement that it has multiple causes. In people who have lost weight and kept weight off, physical activity is almost always involved.
And those people who just do diet are more likely to fail, as are those who just do exercise. You need a combination of the two, because we're talking about human beings, not machines. We know that dietary behaviour is quite a negative behaviour — we're having to deny ourselves something.
There aren't any diets out there that people enjoy. But people do enjoy being physically active.
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