A study of German university students found that they tended to delay their bedtime on days when they experienced higher levels of stress. Their sleep quality also declined during these periods. The research was published in Stress and Health. Sleep is essential for maintaining overall health, as it allows the body and brain to rest, recover, and perform critical functions like memory consolidation, hormone regulation, and tissue repair. During sleep, the brain processes information from the day, which strengthens learning and supports cognitive functions such as problem-solving and decision-m…