
Why Humans Are Supposed to Sleep in Two 4-Hour Phases
Published August 12, 2021
Views 2.75M | Likes 120K | Comments 4.65K
Ranked #2,533,021 globally by view count, this video has accumulated 2.75M views since it was published on Aug 12, 2021.
Views, likes & comments over time
Hover or tap the chart to see values