Science & the Public Health & Medicine Birth control pills can limit muscle-training gains Share this:FacebookTwitterPocketRedditPrintEmail By Janet Raloff April 23, 2009 at 6:30 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe