In 1993, I remember watching the chess match between Gary Kasparov and Sir Niger Short. The commentators chimed in on how weight lifting was essential to their regimens. They never did explain the connection.
A couple of years ago, I read a magazine article that factored the latest scientific findings, focusing on one of the myriad discoveries. Everytime one lifts a dumbell, there is a generation of a chemical called IGF-1: it is used by the brain to synthesize another more complicated compound called Brain Derived Neutrophic Factor. BDNF facilitates improved and efficient thought processes.
I was so moved by the findings that I memorized the acronyms! :-)
Stillness is the greatest revelation.
-- Lao Tzu
The light of the body is the eye.
-- J. Ch__st.