Health

Sleep debt quietly erodes executive function, working memory, emotional regulation, and motivation. Even limiting sleep to six hours a night for two weeks creates cognitive impairment equivalent to total sleep deprivation. For women, menstrual cycle phase changes how sleep loss lands. Learn what sleep debt actually does to your brain at work and how to use Phase to plan around your real cognitive capacity each day.

Bad weather can impact your circadian rhythm, hormones, and focus— but complaining about it tanks your productivity more than the rain itself. Science-backed strategies to work with your body during bad weather.