Social engagement and relationships 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?

Several long-term treatments can help people overcome opioid addiction. One of them, naltrexone, may help people who have trouble sticking with taking a pill every day. Naltrexone can be offered as a monthly injection called Vivitrol, which has been shown to help more people stay on treatment as compared to the pill form. However, it’s not for everyone, and like all treatments for opioid addiction, it must be used very carefully.

Although the two conditions seem unrelated, Alzheimer’s and heart disease actually share a genetic link. People who have a certain gene variant have both a somewhat elevated heart disease risk and a significantly elevated Alzheimer’s risk. Fortunately, a recent study has suggested that when people know they have this variant, they’re more likely to make healthy lifestyle choices that benefit their heart — and what’s good for the heart is good for the brain.

Many older adults take PPIs to treat heartburn, GERD, or stomach ulcers. Recently, a new study identified a link between chronic PPI use and an increased risk for dementia. If you take a PPI, check in with your doctor — you may be able to take it only when you have symptoms, not continuously (and this kind of usage was not associated with a dramatically increased dementia risk in the study).

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.

A recent study that tracked healthy volunteers’ exercise and drinking habits found that they tended to drink more on days when they exercised more. But this study might have had drastically different results if conducted with different groups. For example, what results might we see if the volunteers were sedentary people looking to exercise more — or people with unhealthy drinking patterns who were working to cut back?

Ask anyone who’s ever tried to make a healthy change — after a while, the motivation to keep at it just stops. Indeed, it can be incredibly hard to break old habits, or make new ones. But research has revealed that there are actually two different types of rewards in the brain — and that focusing on the less commonly pursued of the two can help you make lasting changes.