A recent study has found that caffeine might exacerbate the negative effects of chronic sleep restriction on the brain’s grey matter. The researchers discovered that people who consumed caffeine during a period of sleep restriction showed more significant reductions in grey matter volume compared to those who did not consume caffeine. The findings were recently published in Scientific Reports. Caffeine is the most widely used psychoactive substance globally, renowned for its ability to improve alertness and alleviate cognitive impairments caused by lack of sleep. However, both acute sleep loss…