Sleep

1. "Loneliness was a significant predictor of sleep fragmentation. Humans' social nature may partly be manifest through our dependence on feeling secure in our social environment to sleep well."
2. Sleep hygiene
1. http://www.umm.edu/sleep/sleep_hyg.htm
4. "Sleep calms the emotions" (912/3/11)
5. "Poorer self-reported sleep quality, but not objectively estimated sleep parameters, during post-acute rehabilitation was associated with shorter survival among older adults." (12/14/11)