Below is a link explaining exercise and its affect on muscle growth (or atrophy.)
http://sportsci.org/encyc/adaptex/adaptex.html
of note is the quote from the article:
Muscles will atrophy as a result of disuse, immobilization, and starvation. Muscles adapt to increasing levels of stress by increasing their function. Disuse leads to decreasing strength and muscle mass. Atrophy results in a decrease in both contractile and sarcoplasmic protein.
It is interesting reading if you like to learn about the science behind muscles.



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) and my partner thinks them very sexy...
