Alcohol
There’s strong evidence to suggest that alcohol can reduce fertility levels in both men and women.
It’s not known exactly how alcohol can affect fertility, but research has shown that women who drink large amounts of alcohol are more likely to experience heavy and irregular menstrual cycles, ovulation issues and can in some cases significantly increase the risk of early pregnancy loss. Heavy drinking in males can reduce sperm quality and lower testosterone production. High levels of alcohol intake can also lead to liver damage which affects and damages reproductive health.