12/20/2010 PERMALINK
Mod boosting supply of key neurotransmitter doubles stamina. Researchers at Vanderbilt University have 'engineered' a mouse that can run on a treadmill twice as long as a normal mouse by increasing its supply of acetylcholine, the neurotransmitter essential for muscle contraction. The finding could lead to new treatments for neuromuscular as well as future human enhancements.