Have you ever wondered why sometimes you feel alert and energetic while other times you can barely keep your eyes open, even if you've had a full night’s sleep? This inconsistency can often be attributed to our internal clock, famously known as the circadian rhythm. While many assume this rhythm runs precisely on a 24-hour cycle, science reveals it’s rarely the case. This article delves into why your internal clock doesn’t match the Earth’s 24-hour day and how it impacts your health and daily life.
