As any caregiver will know, Alzheimer's disease is associated with enormous changes in the mood, behavior, sleep patterns and activities of daily living in the person affected. Some of these symptoms have been associated with disturbances in the circadian rhythm - the term used to describe the 24 hour cycle of our biological processes. Evidence suggests that this inbuilt timing system is very sensitive to both light levels and the hormone melatonin.
A study out this month highlighting the...
