00:00Sleeping under five hours a night was linked to higher risks across dozens of health conditions.
00:05That is the finding from a major study involving nearly 96 and UK biobank participants.
00:11Researchers tracked sleep using wrist-worn motion sensors over seven days and nights.
00:15They then examined health records over a median follow-up of almost nine years.
00:20The results revealed that sleep duration was only part of the picture.
00:23For most conditions showing a clear pattern, the lowest risk was associated with six to eight hours of sleep per
00:30night.
00:31Researchers also found that more REM sleep, the stage associated with vivid dreaming, was linked to lower risks of several
00:38diseases.
00:39These included heart failure, dementia, and Parkinson's disease.
00:43Deeper sleep was also associated with lower risks of conditions, including type 2 diabetes and major depression.
00:49Meanwhile, irregular sleep schedules and more time awake during the night were linked to higher risks of some health problems.
00:57But there is an important distinction.
00:59This observational study cannot prove that sleep patterns directly cause or prevent disease.
01:05The takeaway is that both how long we sleep and how consistently we sleep may matter for long-term health.
01:11Disclosure, this video contains stock footage and content created or enhanced using AI-assisted tools.
