Daytime Naps Promote Healthy Aging, Study Finds.

Taking short daytime naps may protect the brain's health as it ages, according to researchers who found that the practice is associated with larger brain volume. Brain shrinkage, which occurs with age, is accelerated in people with cognitive problems and neurodegenerative diseases, with some research suggesting this may be related to sleep problems. The study drew on data from the UK Biobank study that has collated genetic, lifestyle and health information from 500,000 people aged 40 to 69 at recruitment.