Anxiety Archive

People new to yoga will eventually learn the sun salutation, a so-called "yoga flow." You can modify the sun salutation and still learn all the basic moves by using a chair and a floor mat. Learn more at Introduction to Yoga from Harvard Health Publishing.

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.

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?