A man in athletic gear performs a step-up exercise on a sunny morning in a spacious gym with brick walls and a large clock, creating an inspiring fitness atmosphere. The connection between circadian rhythm and athletic performance might be the missing piece in your training puzzle. Research shows that maximal strength peaks around 16:00–20:00 h in the evening and is lowest around 06:00–10:00 h in the morning . Your body's internal clock influences everything from core temper