Healthy LifeCeliac disease is a severe genetic autoimmune disorder, based on the Celiac Illness Foundation, where the ingestion of gluten results in damage within the small gut. Yes! All of the examples above are bad habits you should avoid. In addition to avoiding smoking and alcohol, excessive exercise, yo-yo dieting, and not sleeping enough, you should also avoid the sun if you aren’t wearing sunscreen. Stick to at least 30 SPF, and don’t skip it on cloudy days. Sun exposure could lead to health risks, such as cancer. Read on for another quiz question.

Fortunately, you can do something to correct these and other unhealthy behaviors. Adopt the following nine habits to keep your body looking and feeling young. Daily exercise may be the closest thing we have to a fountain of youth. A 2008 study found that regular high-intensity exercise (such as running) can add up to four years to your life, which isn’t surprising given the positive effects working out has on your heart, mind, and metabolism.

The idea for the development of a measure of “health expectancy” (the partitioning of the demographic measure of life expectancy into healthy and non-healthy years of life) originated with a report published in 1969 by the U.S. Department of Health, Education and Welfare. The report noted that both good health and long life are fundamental objectives of human activity, but that despite the substantial rise in life expectancy in the 20th century the overall health status of the population was unknown. In fact, it was recognized that accompanying the rise in life expectancy was the emergence of chronic diseases – thus raising concerns about the future health status of the population if death rates continued to decline.

Cut down on processed food. Processed food is not good because (a) most nutritional value is lost in the creation of these foods and (b) the added preservatives are bad for our health. Many processed foods contain a high amount of salt, which leads to higher blood pressure and heart disease. In general, the more ingredients a food has on the label (ending with ‘ite’ or ‘ate’), the more processed it is. Eating 50 grams of processed meat a day has also been found to increase the risk of colorectal cancer by 18%. 7 Go for less processed food, such as a baked potato over chips, a fresh fruit over canned fruit, steamed fish over canned fish, or organic produce over food with high preservatives.

But a predisposition to obesity can be used as a guide to life choices rather than an inevitability. I personally have a genetic history of obesity running through my family, and I practice a flexible form of caloric restriction,” says Susan Roberts a dietary scientist at Tufts University in Boston. I keep my BMI at 22, and have calculated that that requires eating 80% of what I would eat if my BMI was at 30 like every other member of my family.” Roberts stresses that it isn’t hard – she follows her own weight management programme using a tool called iDiet to help her eat less but avoid feeling hungry or deprived of enjoyment. If this wasn’t possible, she adds, she wouldn’t practise calorie restriction.