You Might Struggle to Focus and Think Clearly
Another downside to late nights is a drop in cognitive function. Dr. Sethi says that people who stay up too late often complain about brain fog and poor memory. This is because deep and REM sleep are essential for processing information and storing memories. When you go to sleep after midnight, you may cut into these important stages. Over time, this can make it harder to concentrate, make decisions, or learn new things. Children and teenagers are especially sensitive to these effects, but adults are not immune. Studies show that people who stick to a consistent sleep schedule and sleep earlier perform better at work and school. Choosing the best time to go to sleep gives your brain the time it needs to recover, reset, and stay sharp.
