Steroids boost muscles for the long haul

Experiments in mice suggest effects don’t end when doping does

PUMPED UP  Mouse muscles treated with steroids (right) grow bigger than ones in undrugged animals (left). Steroids increase the number of nuclei in a muscle cell, which may help the muscle pump back up long after the steroids are gone. 

J.C. Bruusgaard/ University of Oslo

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Life

From the Nature Index

Paid Content