Do Fathers Who Exercise Have Smarter Babies?

Exercise changes the brains and sperm of male animals in ways that later affect the brains and thinking skills of their offspring, according to a fascinating new study involving mice. The findings indicate that some of the brain benefits of physical activity may be passed along to children, even if a father does not begin…

WASHINGTON — The new director of the Centers for Disease Control and Prevention is taking a pay cut after Senate Democrats and watchdog groups criticized the use of an exemption to pay him nearly double the rate of his predecessors. Dr. Robert R. Redfield assumed the top post in March at a salary of $375,000…

One stormy afternoon in Ljubljana, the capital of Slovenia, thunder rolled, a bolt of lightning streaked across the sky, and the television and air conditioner went dark in the apartment of a woman with electrodes implanted in her brain. Lightning had struck the building. But the appliances were not the only things affected. After about…

How to Avoid Burnout in Youth Sports

Few would dispute the value to children of participating in sports, organized or otherwise. Being physically active and engaged in friendly competition is widely acknowledged to be good for children’s physical, mental and social well-being. It can foster discipline, cooperation and camaraderie as well as a good time. When I was growing up in Brooklyn…



Five behaviors could extend life expectancy at 50 by more than a decade, even without the discovery of a single new drug or medical treatment. Researchers analyzed two large databases with 34 years of detailed health and lifestyle information on more than 123,000 men and women. Over the years, there were 42,167 deaths. The study,…

There is considerable research showing that nuts, with their high levels of unsaturated fatty acids, fiber and minerals, may help reduce the risk for cardiovascular disease. But a large Swedish analysis published in Heart has found that the benefits are limited and depend largely on other healthy behaviors. Researchers followed 61,364 adults for up to…

A new powdered peanut product is the first food item allowed to claim it may reduce peanut allergies in infants, though parents of susceptible babies are urged to consult a doctor before trying it. The product, called Hello, Peanut, can be mixed into puréed baby food to expose infants to peanuts starting around five months…

An Advance Directive for Patients With Dementia

I had hoped that by now most adults in this country would have completed an advance directive for medical care and assigned someone they trusted to represent their wishes if and when they are unable to speak for themselves. Alas, at last count, barely more than one-third have done so, with the rest of Americans…

Of the five tastes — sweet, salty, sour, bitter and umami — sour is one of the most mysterious. Bite into a piece of lemon and — bing! — your brain gets a message that something sour has arrived. But unlike sweet and bitter, for example, for which biologists have identified proteins on the tongue’s…

E.P.A. Delays Bans on Uses of Hazardous Chemicals

The Environmental Protection Agency will indefinitely postpone bans on certain uses of three toxic chemicals found in consumer products, according to an update of the Trump administration’s regulatory plans. Critics said the reversal demonstrated the agency’s increasing reluctance to use enforcement powers granted to it last year by Congress under the Toxic Substances Control Act….

“Well, you look like you’re doing great,” my primary care physician cheerfully informed me. I stared at her from the examination table in disbelief. I had just told her that I wasn’t enjoying being with my children and was having trouble doing what needed to be done at work and at home. As a health…