Men’s Health

Why the human heart thrives with exercise

A study comparing the hearts of apes with four different groups of men demonstrates how the heart adapts over a person’s lifetime depending on what exercise a person does (or doesn’t do). The most revealing part of the findings pertained to men who are generally not active.

Time to redefine normal body temperature?

Robert H. Shmerling, MD

Senior Faculty Editor, Harvard Health Publishing

Is 98.6˚ F still the norm for body temperature? Data collected over almost 160 years show that the normal body temperature has been declining and is now roughly one degree lower.

Can stress really make hair (or fur?) turn gray?

Robert H. Shmerling, MD

Senior Faculty Editor, Harvard Health Publishing

Does stress really turn hair gray? Scientists conducted experiments that simulated stress and led to gray hair—in mice, which does not mean it’s true for humans, regardless of what you may have heard in the media.

As coronavirus spreads, many questions and some answers

Todd Ellerin, MD


Readers have many questions about the new coronavirus (COVID-19). We have enlisted one of our experts on infectious disease to answer some of them.

Five healthy habits net more healthy years

Following five healthy lifestyle habits has been shown to extend life expectancy. Better still, a recent study suggests the added years are more likely to be free of illness or disease.

What’s in a number? Looking at life expectancy in the US

Scott Weiner, MD


Between 1959 and 2014, average life expectancy in the United States rose astoundingly by nearly a decade. Then it began declining. A recent report examining this situation raises tough questions about that unexpected change.

Infertility the second time around

Ellen S. Glazer, LICSW

Guest Contributor

If you have a child and wish for more but are struggling with fertility issues, you may have many feelings and concerns. Here are some steps and strategies you may find helpful.

Sexually transmitted infections are on the rise: Should you worry?

The number of sexually transmitted infections reported in the US reached an all-time high last year. Having an STI can raise a person’s risk of getting HIV or having infertility or pregnancy complications, but STIs are preventable and treatable. Knowing the facts about STIs and testing is the first step.

Could white-coat hypertension harm your heart?

People who have elevated blood pressure readings in a doctor’s office but normal readings elsewhere are said to have white-coat hypertension. A new study suggests that people with this condition face a greater risk of heart disease than those whose blood pressure is always normal.

Will a purpose-driven life help you live longer?

A study found that people who felt they had purpose in life were more likely to live longer than those who did not. Having a life purpose might lessen stress and inspire people to invest in their health. Wishing for purpose? A few strategies may help.