Research progress on the influence of circadian rhythm on male semen quality
The circadian clock is a self-regulating timing system with in the body that is crucial for maintaining normal physiological health.It exhibits a 24-hour rhythmic oscillation and controls various physiological processes in the body.Circadian rhythm is one of the forms of the circadian clock rhythm,which is coordinated with the environmental day-night changes and regulates the physiological state of the body.Abnormal circadian rhythm may affect physical health and lead to a decline in sperm quality,increasing the risk of infertility.This paper systematically reviews the relationship between circadian rhythm and sperm quality from the perspectives of light exposure,shift work,sleep quality,and sleep duration,providing new insights of identifying the causes of declining sperm quality and the mechanisms of infertility,and elucidating the importance of maintaining normal circadian rhythm for male reproductive health.