Doctors usually focus on a person's average blood pressure, but research increasingly shows that how much blood pressure ...

Doctors usually focus on a person's average blood pressure, but research increasingly shows that how much blood pressure fluctuates from moment to moment is just as important.

Alas, there are no homunculi crammed inside the smallest human cells. Yet recent research in fertility and urology suggests Hartsoeker’s image could work metaphorically: Sperm can be a proxy for the ...