How Menopause Affects Exercise: Thirst

Dr. Peggy Whitson is an astronaut on her third extended mission on the International Space Station. If her current mission ends as planned, she will be the astronaut with more time in space than any other. She just completed her 7th spacewalk to install three new lithium-ion batteries. This is nothing like changing the batteries in the remote; each battery is about the size of half of a refrigerator and takes hours to install. And, oh, by the way, Dr. Watson is 56 years old.

By all accounts, she is fit, with an avid interest in weight training and . . .

We're sorry, but this content is available to Members and Insiders only.

If you're already a DrChet.com Member or Insider, click on the Membership Login link on the top menu. Members may upgrade to Insider by going to the Store and clicking Membership; your membership fee will be prorated automatically.