In men at the age of 36, as androgen levels decline, sperm count and sperm quality will also gradually decrease, and fertility will naturally decline. Under normal circumstances, male fertility will generally decline with age. After the age of 35, androgen levels in the male body will gradually decline, and the quantity and quality of sperm during this period will usually also gradually decrease, and fertility will experience a natural decline. If you want to slow down the decline of male fertility, you should firstly improve your bad habits, such as staying up late, smoking, straining and sitting for a long time. Secondly, you can carry out appropriate exercise, such as push-ups, jogging, etc., which is conducive to maintaining normal endocrine regulation of metabolism and promoting normal levels of sex hormones. 36-year-old male fertility decline, you need to promptly seek medical attention by the doctor to clarify the cause of the disease, and standardized treatment.