Aging is a function of Time.

Rejuvenation is a function of Timing.

Butterflies Need No Taxidermist.

“There are three excrements. The first is the result of ordinary food and must be eliminated each day. The second is sexual and must be eliminated in the bathroom, for some every day, for others every week or month or six months. The third excrement is formed in the head from the food of impressions, ‘the waste accumulates in the brain’; doctors ignore it, as they ignore the role of the appendix in digestion.”

Old age is being acidic in the wrong places.

Youth is being acidic in all the right places.

“Muscles are strengthened based on the force placed across them during exercise. The force-velocity relationship of muscle indicates that high velocity movements correspond to low muscle force and that low velocity movements correspond to high muscle force. Since strengthening requires high force-producing exercises, the velocities must, necessarily be relatively low. High velocity movements may have other beneficial effects (e.g. improve muscle activation by the nervous system), but not at the muscle tissue level. The take home message — keep velocity low for strengthening.”