A siesta is a short nap taken in the early afternoon, often after lunch. This practice is common in several cultures, particularly in Spain and other Mediterranean countries, where the midday heat can make work uncomfortable. Siestas typically last from 20 minutes to an hour, allowing people to recharge for the rest of the day. The tradition of taking a siesta is rooted in the natural circadian rhythm, which can lead to a dip in energy levels after eating. Many people find that a brief rest helps improve focus and productivity, making it a beneficial practice for both physical and mental well-being.