1. Staying up too late- Research suggests that lack of sleep may lower production of the hormone testosterone which is essential for sperm production.
  1. Keeping your cellphone in your pocket- This habit can affect the quality of the sperm and can also decrease sperm motility. Studies have shown that the radiation emitted from phones could cause DNA damage to sperm and heat from a phone could raise the temperature insid your scrotum and hamper sperm quality.
  1. Drinking excessively and Smoking- Both these habits can be extensively harmful to the male reproductive system. Both the cells in the testes, those making sperm and those producing the male hormone testosterone are adversely affected. Chronic heavy drinking and smoking can cause shrinkage in testicles, increase the abnormal sperm forms, decrease the sperm count and motility and are associated with increased sperm DNA damage all these decrease the chances of a pregnancy.