Air travel, shift work and space travel are modem activities that profoundly disturb the body's inner biological or "circadian" clock, giving rise to several minor (and in some cases serious) health problems.
Experiments have shown that without external time cues -- such as bedtime, mealtimes, work deadlines -- the body clock runs slow, at cycles of about 25 hours.
Many remedies have been proposed for combating jet lag, including special diets, various drugs, exposure to very bright light and, most recently... (more)
Read Article Combating Jet Lag
