Ethanol from exogenous and endogenous sources and its more toxic metabolite, acetaldehyde, have been implicated in both osteoporosis and osteonecrosis.
However, there has been criticism that sports such as football (soccer) and baseball are doing nothing about the issue, and letting athletes implicated in doping away unpunished.
Although it is unclear whether the studies generalize to all processing, subconscious processes have been implicated in the initiation of conscious volitional movements.
