Sleep is a naturally recurring circadian-modulated behavior. Lifestyle factors, consisting of repeated daily behaviour, can also have significant impacts on sleep regulation. The same part of the brain that regulates sleep-wake hormones in both genders also triggers the regular release of hormones that effect women's ovulation and men's sperm maturation. Increased prevalence of short sleep and poor sleep quality are associated with adverse health effects; also increases the risk of infertility among both genders. xidative stress but also regulates the release of female reproductive hormones. Insufficient sleep effects adequate secretion of melatonin which could affect the ovaries. Long-term sleep deprivation for women may directly impact various hormones related to fertility, including progesterone, estrogen, luteinizing hormone and follicle-stimulating hormone. For example, leptin (appetite-regulating hormone), that indirectly participates in the regulation ...