One type of sleep is linked to lower dementia and Parkinson’s risk, the article reports.

Researchers also connect that rest pattern to 81 other serious conditions.

Wearables now help track the nightly patterns scientists study according to the article.

Too little sleep raises dementia risk, while excess rest can also harm.

Duration and structure matter years before cognitive symptoms appear according to the article.

Public health talks increasingly treat sleep as a prevention tool.

Large clinical cohorts helped identify a biological sweet spot for rest.

Experts say lifestyle sleep habits may ease neurodegenerative burdens later.

Read the full article for more details on sleep and disease risk.