Changes in circadian rhythms
It is common for entraining factors of the circadian rhythms to be attenuated in old age. The exposure to light falls because the elderly remain indoors for longer, and often have cataracts and macular degen-eration which reduce the amount of light stimulating the retina. Institutionalization in nursing homes, re-duction in activity, either due to lack of opportunity or physical restrictions, social isolation and boredom all adversely affect (more…)
