Marathon runners experience reversible changes in their brain myelin. These findings indicate that myelin (a substance that surrounds the neurons) exhibits behavior that was previously unknown, and ...

The biological age of humans and mice undergoes a rapid increase in response to diverse forms of stress, which is reversed following recovery from stress, according to a study publishing on April 21 ...

HRT produces a variety of changes similar to puberty in your body, not all of which are permanent. Your doctor will discuss them fully with you before you start treatment. HRT involves receiving a ...