Phys.org -
10 Apr 2015 21:35

Imagine if all of your physiological changes were hyper accelerated so that you passed through life cycles in weeks as opposed to decades. You'd be able to grow a beard overnight or your hair might begin graying in a matter of days or maybe menopause would come knocking by next weekend. This may seem like a far stretch from reality, but spaceflight causes significant physiological changes including an accelerated loss of muscle and bone density, and immune system dysfunction that parallel the ef...
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