Healthy aging and longevity Archive

Many people cite a lack of “motivation” or “willpower” as the reason that overweight people can’t control their eating habits. But a wealth of evidence has come to light that obesity is linked to insufficient sleep. Most recently, an experimental study has found that restricted sleep can increase the levels of brain chemicals that make eating pleasurable. Could it be that insufficient sleep makes the brain addicted to the act of eating?

Heartburn is a common problem. It's caused by the backwash of stomach acid into the esophagus, the tube connecting the mouth and stomach. This is formally called gastroesophageal reflux disease (GERD). More than just a minor discomfort, heartburn can significantly reduce quality of life. "Heartburn can cause damage to the esophagus and even increase the risk of cancer if ignored and untreated," says Dr. William Kormos, editor in chief of Harvard Men's Health Watch and a primary care physician at Massachusetts General Hospital.

These eight steps can help ease heartburn.

1. Eat in a heartburn-smart way. Large meals put pressure on the muscle that normally helps keep stomach contents from backing up into the esophagus. The more you eat, the longer it takes for the stomach to empty, which contributes to reflux. Try smaller, more frequent meals — and don't wolf down your food.
2. Avoid late-night eating. Having a meal or snack within three hours of lying down to sleep can worsen reflux, causing heartburn. Leave enough time for the stomach to clear out.
3. Don't exercise right after meals. Give your stomach time to empty; wait a couple of hours. But don't just lie down either, which will worsen reflux.
4. Sleep on an incline. Raising your torso up a bit with a wedge-shaped cushion may ease nighttime heartburn. Wedges are available from medical supply companies and some home goods stores. Don't just prop your head and shoulders up with regular pillows — doing so can actually increase pressure on the stomach by curling you up at the waist.
5. Identify and avoid foods associated with heartburn. Common offenders include fatty foods, spicy foods, tomatoes, garlic, milk, coffee, tea, cola, peppermint, and chocolate. Carbonated beverages cause belching, which also causes reflux.
6. Chew sugarless gum after a meal. Chewing gum promotes salivation, which helps neutralize acid, soothes the esophagus, and washes acid back down to the stomach. But avoid peppermint-flavored gum, which may trigger heartburn more than other flavors.
7. Rule out medication side effects. Ask your doctor or pharmacist whether any of the medications you take might cause pain resembling heartburn or contribute to reflux.
8. Lose weight if you need to. Being overweight puts more pressure on the stomach and pushes stomach contents into the esophagus. The tight-fitting clothing and belts that come with weight gain may also be a factor. 

For more on relieving heartburn and treating a sensitive gut, purchase The Sensitive Gut by Harvard Medical School.

There is no question that regular exercise is essential to good health. That fact alone is enough motivation for some folks. For others, setting meaningful personal goals — whether it's finishing a 10K race or getting back into those jeans you love — and keying into what motivates you can help launch a successful workout program.

Motivation takes many forms, so find the carrot (or stick) that works for you. Maybe you'd like to get ready to tackle new activities, like climbing a towering rock wall, churning through the water during a triathlon, or making it 26.2 miles in a marathon. Perhaps you just hope to feel fit and good about your body. Maybe a friendly bet with a spouse or friend — loser pays for kayaking lessons — or wanting to hold up your end of the bargain with a new exercise partner will do the trick.

Last year, the Alzheimer’s Association predicted that rates of dementia would continue to rise. However, a report recently published in the New England Journal of Medicine found that rates of dementia have actually dropped steadily over the past three decades. Whether the drop in rates applies to everyone, and whether it will continue, remain to be seen. But the evidence also confirms that there’s quite a lot you can do to lower your dementia risk.

Mosquitoes can transmit many viruses, such as, Zika, West Nile, dengue, and yellow fever.
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Ask the Doctor

Q. Why is it that we suddenly have epidemics of things like Zika virus that we've never heard about, and that we have no treatments or vaccines for? It feels like we should be better prepared than we apparently are. This worries me more than terrorism.

Address vision, hearing, physical, and logistical problems before you head out the door.

Image: Thinkstock

Now that spring is here, you may be going back outside to walk. But don't take your walking routine lightly. While walking is a simple and effective exercise, it can put you at risk for falls and other injuries. As a result, physical and environmental dangers may turn a walk outside into a trip to the hospital, sabotaging your good intentions to stay healthy. Consider the following hazards and fixes before you start walking.

Hazard: Gait and stability problems

Causes: Back, hip, knee, ankle, or foot pain; muscle weakness; imbalance from neurological conditions such as Parkinson's disease; dizziness from inner ear conditions; vision problems; or a combination of these.