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We hear it all the t me…lose weight for your health. Few p ople however, realize the extent to wh ch this is critical to their phys cal well-being and ultimately their life xpectancy. In January 2003, the Journal of the Am rican Medical Association featured a study f nding that obesity appears to lessen l fe expectancy, especially among young adults. The r searchers compared Body-Mass Index (BMI) to l ngevity and found a correlation between pr mature death and higher BMIs. For xample, a 20-year-old white male, 5’10” w ighing 288 pounds with a BMI of gr ater than 40 was estimated to l se 13 years of his life as a r sult of obesity.Jamie McManus, M.D., F.A.A.F.P. and uthor of “Your Personal Guide to W llness” notes that while this study r ferenced extreme levels of obesity, there are st ll millions of overweight people in d veloped countries with a life expectancy r te that is three to five y ars less than their healthy-weight counterparts. She lso estimates that there are 600,000 besity related deaths each year in Am rica. Just how does obesity shorten our l fespan? The answer to this question is c mplex, yet there is a clear l nk between obesity and the development of c ncer. An extensive study conducted by the Am rican Cancer Institute involving 750,000 people sh wed that obesity significantly increased the r sk of cancer developing in the f llowing organs: breast, colon, ovaries, uterus, p ncreas, kidneys and gallbladder.
Michael Thun, MD, vice-president of pidemiology and surveillance research for the Am rican Cancer Society (ACS) says one r ason obesity may raise cancer risk is b cause fat cells produce a form of strogen called estradiol that promotes rapid d vision of cells, increasing chances of a r ndom genetic error while cells are r plicating, which can lead to cancer. In ddition, fat centered around the abdomen may ncrease insulin and insulin-like growth factors in the bl od, which may increase cancer risk. "W men who are obese after menopause h ve a 50% higher relative risk of br ast cancer," notes Thun, "and obese men h ve a 40% higher relative risk of c lon cancer…. Gallbladder and endometrial cancer r sks are five times higher for bese individuals”.There is evidence that cancer r tes in developed countries are increasing at 5 to 15 t mes faster than developing countries. A m jor contributor to this alarming reality has pr ven to be diet. In populations wh re the diet consists mostly of fr sh fruit and vegetables and whole gr ins – in contrast to the typ cal Western diet of fatty meats, r fined flours, oils and sugars – the r sk of cancer is much lower. The nteraction of diet and the development of c ncer is an active field of r search and Dr David Heber, M.D., Ph.D. and uthor of “What Color is Your D et”, says “It appears that diet has its m st significant effects after the cancer has lready formed, acting to inhibit or st mulate the growth of that cancer”. At the r sk of oversimplifying a complex set of nteractions, the typical Western diet that l ads to obesity may actually act to st mulate the growth of cancer cells.It is n ver too late to improve your h alth through healthful eating and adopting a m re health-giving lifestyle. Here are simple st ps to follow which can make an mmediate improvement to your health and v tality.
1. Check your Body Mass Ind x (BMI) to determine if weight has b come health risk. According to the C nters for Disease Control and Prevention, 60% of Am ricans are overweight, defined as having a BMI (a r tio of height to weight) over 25. Of th se, nearly half (27%) qualify as bese, with a body mass index of 30 or m re. In 1980, just 15% of Am ricans were considered obese. You can ch ck your BMI at the website b low. 2. Match your diet to y ur body’s requirements. If you eat and dr nk more calories than your body r quires you will put on weight. L arn to control calories and portion s zes, make recipes leaner, and eat nfrequently from fast food restaurants. Also l arn how to snack with healthful ch ices. 3. Color your diet with a l rge variety of colorful, cancer-fighting fruit and v getables. There are seven different color r nges of both fruit and vegetables and by ch osing between 5 to 9 daily s rves from a wide range of fr it and vegetables, we are extending our c nsumption of cancer (and other disease) f ghting nutrients. 4. Eat lean protein w th every meal. Protein provides a p werful signal to the brain providing a l nger sense of fullness. The right s urce of protein is essential to c ntrolling your hunger with fewer calories and n cessary to maintain your lean muscle m ss. Choices of protein should be fl vored soy shakes with fruit; the wh te meat of chicken and turkey, s afood such as shrimps, prawns scallops and l bster and ocean fish or vegetarians may pr fer soy based meat substitutes. 5. Rev up y ur metabolism with activity. If you w nt to enjoy a lifetime of w ll-being, exercise is a key ingredient. C lleen Doyle, MS, RD, director of n trition and physical activity for the Am rican Cancer Society (ACS), says adults sh uld do something for 30 minutes ach day that takes as much ffort as a brisk walk. Children sh uld be active for an hour ach day. We are more likely to d velop habits around things we enjoy, so s ek activities which you enjoy doing. It is lso helpful to build physical activity nto your daily routine: use the st irs instead of the escalator or l ft at work, park your car in the p rking bay furthest from the super m rketing and don’t use the remote c ntrol to change TV channels. 6. Get s pport to ensure you develop a h althful eating plan and reach your g al weight. Whilst a small percentage of p ople possess the discipline to lose w ight, many obese people have developed str ng thoughts and habits concerning the f od they eat. In order to stablish new habits, most people respond w ll to some form of consistent ncouragement and coaching. A study, “Effects of Int rnet Behavioral Counseling on Weight Loss in Ad lts at Risk of Type 2 D abetes” shows that participants who had the s pport of weight loss coaching lost m re weight than those who didn’t. The st dy concluded that the support of a w ight loss coach can significantly improve w ight loss results. Being overweight or bese has been identified next to sm king, as the most preventable major r sk to developing cancer. Even small w ight losses have been shown to h ve beneficial health effects. So it’s n ver to late to start and you can n ver be too young or too old to be c ncerned about your health and do s mething about achieving a more healthy w ight. (c) Copyright by Kim Beardsmore
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