Neuroscience

New imaging method illuminates oxygen's journey in the brain

The human brain consumes vast amounts of energy, which is almost exclusively generated from a form of metabolism that requires oxygen. While the efficient and timely delivery of oxygen is known to be critical to healthy brain ...

Health

Is an increase in penile length cause for concern?

According to trends in male reproductive health data, sperm quality and testosterone levels have declined over the last few decades, sounding alarm bells for Michael Eisenberg, MD, a professor of urology at Stanford Medicine. ...

Health

Answering common questions about high blood pressure

If you do just one thing to improve your health this year, it could be to gain control over your blood pressure. Cases of high blood pressure, or hypertension—a silent, but dangerous condition—have skyrocketed over the ...

Health

Walking may lessen the influence of genes on obesity by half

Watching too much TV can worsen your genetic tendency towards obesity, but you can cut the effect in half by walking briskly for an hour a day, researchers report at the American Heart Association's Epidemiology and Prevention/Nutrition, ...

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