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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.

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.

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.

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.

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.

Is surgery the best choice to treat your prostate cancer? Here's what you need to know.

There are many ways to deal with a prostate cancer diagnosis. You might choose the wait-and-see approach of active surveillance for low-risk disease, in which you monitor your condition and only treat if the cancer becomes more aggressive. In terms of treatments, you can opt for radiation therapy, which attacks cancer cells, or androgen deprivation therapy, which tries to slow cancer growth by shutting down testosterone production.

The remaining option is radical prostatectomy: surgery to remove the entire prostate gland. While this is the most invasive approach, it's the right choice for some men.

"What can I eat to reduce my risk of developing prostate cancer?" This is one of the most common questions physicians hear from men concerned about prostate health. Undoubtedly, many hope that their doctor will rattle off a list of foods guaranteed to shield them from disease. Although some foods have been linked with reduced risk of prostate cancer, proof that they really work is lacking, at least for now.

Aim for a healthy eating pattern

Instead of focusing on specific foods, dietitians, physicians, and researchers tout an overall pattern of healthy eating � and healthy eating is easier than you might think. In a nutshell, here's what experts recommend:

On call

Q. I've noticed blood streaks in my semen twice over the past 10 days. Is this a sign of something serious?

A. When a man sees blood in his ejaculate, his initial thought is cancer. But the reality is that bloody semen rarely is a sign of cancer.