6 Little Lies That Can Ruin Your Health
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6 Little Lies That Can Ruin Your Health

When minor health slipups become habits, they can do real damage to your body. Here's how to stop it before it starts.

Diet, Drinking, and Cholesterol

Is it so bad to have a second piece of cake or to skip a week of exercising when you feel overwhelmed by work, kids, life? The experts say no, as long as you don't convince yourself that it's always okay. "We all need an occasional break from being 'good,'" says Carol Kauffman, PhD, a coaching psychologist at Harvard Medical School in Boston. "If rationalizing that you can be 'bad' here and there becomes a pattern, though, it can sabotage all your stay-well efforts." To help you counter these "little killers," we've dissected six common self-deceptions. Here's how to defy denial and keep your health on course for the long run.

You tell yourself...I can have two glasses of red wine -- research shows it's healthy.

Reality check: One drink a day can slightly reduce your chances of heart disease, but make that two glasses daily and your breast cancer risk can rise 25 percent. Your odds of ovarian and esophageal cancer go up as well, according to the National Cancer Institute. Plus, one study found that women who had two to four drinks a day took in nearly 30 percent more calories overall than nondrinkers. Keep tabs on how much you're pouring: Experts consider 4 ounces to equal one serving -- about one-fourth to one-half of a big goblet.

You tell yourself...It's low-carb so it must be healthy.

Reality check: Foods labeled "low-carb" aren't lower in calories or fat than the regular versions; in fact, some have more calories than the originals. If you do go low-carb, watch serving sizes and calorie counts. "People lose weight on low-carb diets because they're eating fewer calories," says Holly Wyatt, MD, an associate professor of medicine at the University of Colorado Health Science Center in Denver.

You tell yourself...My "bad" cholesterol is high, but I don't have to worry because my "good" cholesterol is high, too.

Reality check: "A really high LDL (bad) cholesterol reading can outweigh the benefits of high HDL (good) cholesterol," says Christie Mitchell Ballantyne, MD, director of the Center for Cardiovascular Disease Prevention at the Methodist DeBakey Heart Center in Houston. LDL cholesterol should be less than 100 and HDL cholesterol should be higher than 50 -- preferably in the 80s. "The further you are from that optimal LDL cholesterol level, the less likely a high HDL cholesterol level will protect you," Dr. Ballantyne says.

To lower LDL cholesterol, eat lots of vegetables, fruit, whole grains, beans, nonfat dairy, and lean protein. One study found that adding plant foods (salad, vegetables, beans) to a low-saturated-fat diet reduced LDL cholesterol more than simply cutting saturated fat alone. And don't cut out all fats: Eliminating unsaturated fats can cause both good and bad cholesterol to drop. Aim to get about 20 to 25 percent of your calories from unsaturated fats and less than 10 percent from saturated fat.

Weight, Workouts, and Sleep

You tell yourself...I don't have to work out -- chasing my kids around is enough.

Reality check: If you spend an hour or so a day running after your kids, you are getting some health benefits -- a modest calorie burn, an immune-system boost, and lower blood pressure and cholesterol levels. But it's the more intense, sustained movement lasting 30 minutes or more that provides the maximum health and weight-loss benefits, says Heather Fink, RD, assistant director of the Center for Educational Services at the National Institute for Fitness and Sport in Indianapolis. The solution: Transform kid duty into exercise. If you typically stroll in the park with your 2-year-old, for example, pick up the pace and try to log in 30 minutes. And while your child naps or plays, strength-train at home. Build a workout around push-ups, lunges, walking lunges, squats (sitting in a chair, then standing up), calf raises (going up and down on your toes when you're standing on a stair) and triceps dips. "Try to do 8 to 12 reps and two sets of each exercise," advises Fink. You can also use easy at-home equipment such as resistance bands and hand weights, and do exercise DVDs.

You tell yourself...I'm not overweight, I'm just big-boned.

Reality check: We know it's hard to hear, but if your body-mass index (BMI) -- a measure of fat based on height and weight -- is 25 or higher, you may need to lose 5 to 10 percent of your weight, says Dr. Ballantyne. Unfortunately, bone mass can constitute only 4 to 7 percent of your total weight -- about 6 to 10 pounds if you weigh 150 -- and that's considered too small to affect BMI, says Gregory W. Heath, a professor of health and human performance at the University of Tennessee in Chattanooga.

You tell yourself...I can get by on five hours of sleep a night.

Reality check: Skimping on shut-eye is okay every once in a while, but getting fewer than seven hours a night will make you moody, irritable, and less productive. "Sleep debt makes multitasking and the ability to focus more difficult," says Clete A. Kushida, MD, PhD, director of the Stanford University Center for Human Sleep Research in Palo Alto, California. The health consequences are pretty steep too: People who typically get five hours a night have 15 percent higher levels of ghrelin, a hormone that can stimulate appetite, than those who get eight hours, according to researchers at the University of Bristol in the U.K. Other studies have shown a possible increased risk for heart disease, diabetes, and breast cancer.

If you feel like nodding off whenever you've got quiet time -- a train ride or a long movie -- then you need more sleep.

Originally published in FITNESS magazine, March 2007.