Pediatric health Archive

Q. Do you think we'll ever be able to prevent Alzheimer's disease?

A. I do. Not because I'm an optimist (though I am) but because of the results of research in the past 25 years.

 Image: Thinkstock

Q. I heard regular aerobic exercise is better for the brain than strength exercises (resistance training). Is that true?

A. The study you probably heard about involved rats, not humans. The rats were made to engage each day in sustained aerobic exercise, high-intensity interval training, or resistance training, or they were allowed to just be sedentary. At the end of the study, the researchers examined the rats' brains. The rats doing regular aerobic exercise had more brain cells than the sedentary rats. However, the rats made to perform high-intensity interval training or the ones doing resistance training did not have more brain cells than the sedentary rats.

News Briefs

Don't be surprised if your doctor screens you for depression at your next visit. An update to the U.S. Preventive Services Task Force recommendations for screenings, published Jan. 26, 2016, in The Journal of the American Medical Association, suggests that all adults 18 or older, including older adults, should be screened for depression when there are systems in place to ensure accurate diagnosis, effective treatment, and appropriate follow-up. The previous recommendations encouraged selective screening based on professional judgment and patient preferences. The new recommendation also includes pregnant and postpartum women for the first time. "Older adults often struggle with chronic disease, or the loss of a loved one, which may lead to depression," says Dr. Michael Craig Miller, an assistant professor of psychiatry at Harvard Medical School. "Screening is just a way to open the door for people who might otherwise not get the help they need." Dr. Miller says screening can simply be asking if, over a two-week period, you have either had little interest or pleasure in doing things or felt depressed and hopeless.

 Image: Attila Barabas/Thinkstock

News Briefs

Caring for an elderly family member with disability, dementia, or both is a tough job. And those with the heaviest responsibilities suffer the most consequences, finds a study published Feb. 15, 2016, in JAMA Internal Medicine.

Researchers looked at information from two large national surveys of older adults and their family caregivers. They noted that about 15 million family caregivers are assisting almost eight million adults 65 or older, and 44% of caregivers are providing substantial care—about 28 hours per week—by helping with medication management, doctor visits, and transportation. Researchers found that people providing substantial care are more likely to live with the person they care for and are more likely to experience significant emotional, physical, and financial difficulty compared with caregivers who don't provide substantial help. Researchers also said people providing substantial care are more than five times as likely to miss out on activities they value and three times as likely to be less productive at work, compared with those who don't have such a heavy caregiving load.

Rice has an unusually high arsenic content — and high amounts of arsenic in the body can increase the risk of cancer and learning difficulties. The FDA has recently proposed an upper limit on the amount of arsenic in infant rice cereal, but it hasn’t yet been adopted. In the meantime, we’ve listed steps you can take to reduce your — and your child’s — consumption of arsenic.

A negative attitude about aging appears to be associated with a higher likelihood of Alzheimer's disease.

A study in the journal Psychology and Aging examined healthy, dementia-free subjects from the Baltimore Longitudinal Study of Aging, the nation's longest-running scientific study of aging.

Ninety percent of smokers had their first cigarette before turning 18. A movement to raise the legal age to buy tobacco in the United States to 21 hopes that making it more difficult for young people to start smoking may lead to a healthier population overall.

The development of vaccines for many once-fatal illnesses has saved the lives of hundreds of thousands of children in the United States. While some parents may have concerns about the side effects of a vaccine, the decision not to vaccinate a child extends the risk of illness to the larger community.

It’s natural to want to shield your children from the vitriol of this year’s presidential campaign — but think twice before you turn off the evening news. We’ve listed three ways you can turn this year’s campaign into opportunities to teach your children about the political process and even have conversations that can help them — and you — come away with a broader perspective.

As you've gotten older, have you noticed that you often find yourself marching around the house in a huff, searching for misplaced car keys or eyeglasses, or you just cannot remember the name of that new neighbor you met when walking the dog? It's frustrating, to be sure, but not inevitable — and there are things you can do to help keep your memory sharp.

"Most people get a little more forgetful with aging, but there are some simple things you can do to prevent memory slips and help your brain to learn and remember better," says Dr. Anne Fabiny, chief of geriatrics at Cambridge Health Alliance and an assistant professor of medicine at Harvard Medical School.