Mind & Mood Archive

Studies suggest that adopting a sunnier outlook may improve your health and even extend your life.

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In these turbulent times, it's sometimes a struggle to maintain a glass-half-full view of life. But if you can, it may serve you well. A growing body of research links optimism—a sense that all will be well—to a lower risk for mental or physical health issues and to better odds of a longer life.

One of the largest such studies was led by researchers Dr. Kaitlin Hagan and Dr. Eric Kim at Harvard's T.H. Chan School of Public Health. Their team analyzed data from 70,000 women in the Nurses' Health Study who, in 2004, had answered questions about how they viewed their futures

Studies show smoking high-tar unfiltered cigarettes, as opposed to medium-tar filtered cigarettes, greatly increases your risk of lung cancer. So, cigarettes labeled as low-tar or ultra light are an even safer choice, right? Wrong. A study comparing the lung cancer risks of different types of cigarettes found this seemingly logical assumption is false.

The study six years and involved over 900,000 Americans over the age of 30. The researchers compared the risk of death from lung cancer among men and women who were smokers, former smokers, or had never smoked. When analyzed according to the tar rating of cigarette smoked, the results of the study showed the risk of lung cancer death was greatest for smokers of high-tar unfiltered cigarettes. The risk of lung cancer death was no different among smokers of medium-, low-, and very low-tar cigarettes.

Mind-bending puzzles aren't the only route to improving memory and reason. Activities that engage your emotions and senses may be even better.

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In the midst of promotions for commercial brain training programs to ward off age-related cognitive decline, a few studies are beginning to indicate that simple pleasures may be even more productive. You may find that doing one of the following is an easier and more rewarding way to boost your brain than doing computer-based exercises.

1. Care for a dog

3.Play with a child

Vascular dementia is a less prevalent type of memory loss that nonetheless affects many older men.

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While Alzheimer's disease continues to be the most recognized type of dementia, older men should also be mindful about the second most common: vascular dementia.

In vascular dementia, memory problems result from damage to large and small blood vessels in the brain. It develops when cholesterol-clogged blood vessels can't deliver enough oxygen to the brain. Small blockages deprive some brain cells of oxygen, which causes a series of small strokes that kill brain cells. This can lead to episodes of confusion, slurred speech, and problems thinking or remembering.

Older adults who report feeling lonely had a greater risk of testing positive for high amyloid levels in the brain, a marker of Alzheimer’s disease, according to research from the Harvard Aging Brain Study.

Anger or emotional upset may double the risk of having a heart attack. Heavy physical exertion appears to have the same effect. And people who do intense exercise while they’re upset or mad may face three times the risk of heart attack. 

Stopping exercise for 10 days can reduce brain blood flow by 20% to 30% in eight brain regions, including the hippocampus, which is responsible for learning and memory and is one of the first brain regions to shrink in Alzheimer’s disease.

You may be able to save time and money—and spare yourself frustration—by adopting a more minimal approach to preventing disease.

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As the Shaker lyrics go, "'Tis the gift to be simple," and simplicity is a gift you might want to grant yourself in the new year. If so, you'll have some help from health experts. In the past few years, complicated advice for diet and exercise has given way to simpler, more sustainable guidelines, and the FDA has come down in favor of simple soap and water over antimicrobial cleaners to prevent infectious diseases.

If you've vowed to make positive changes in your lifestyle this year, you're likely to be more successful if you don't take on complex new regimens. "People can achieve remarkable changes in their lives one small step at a time," says Dr. Edward M. Phillips, assistant professor of physical medicine and rehabilitation at Harvard Medical School and medical editor of the Harvard Special Health Report Simple Changes, Big Rewards (www.health.harvard.edu/change).

Exploring why you're bored can stimulate creativity and lead to a better understanding of yourself.

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Most of us have had times when we couldn't find anything satisfying to do or couldn't keep our attention focused on a lecture or book. If we were asked to describe how we felt at the time, we'd probably have answered "bored."

Boredom doesn't necessarily arise from having nothing interesting to do. For example, you can probably remember sitting quietly watching the sun slowly set and being completely enthralled. Compare that to another moment in which you've also sat quietly—but in slow moving traffic—and felt terribly bored. "What makes the difference is whether during a low-stimulation moment, there are unpleasant feelings in the background. Many of us habitually distract ourselves from unpleasant feelings through entertainment or activity—like checking our smartphones, or watching TV," says Dr. Ronald Siegel, a psychologist at Harvard Medical School and the medical editor of the Harvard Special Health Report Positive Psychology. "Sometimes when there is little to engage us, those unpleasant feelings bubble into our consciousness and we feel something unpleasant, which we identify as boredom. Other times we're content to just be present—like when enjoying a sunset."

Weight training improved mental performance in a study of 100 men and women ages 55 through 86 who had mild cognitive impairment.