TIL that nearly 1 billion adults worldwide are estimated to have sleep apnea, with most cases going undiagnosed.

https://pmc.ncbi.nlm.nih.gov/articles/PMC7007763/
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1g9nv89/til_that_nearly_1_billion_adults_worldwide_are/