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Effect of age on male fertility. While the effect of age on a man's fertility is not as significant as it is with women, there is a decline in the quality of sperm after the age of 45. After this age, it does tend to take longer for men to cause a pregnancy and the chance of having a baby with a health problem does slightly increase.
Male Fertility and Alcohol. Men tend to drink more than women do and can generally handle it. However, the night out with the boys also affects their fertility. Consuming excessive amounts of alcohol lowers testosterone levels as well as the quality and quantity of sperm.veryone enjoys the odd glass of wine or whiskey and there is nothing wrong with unwinding in that way if you enjoy it. For people trying to conceive it might be worrying, as one has to answer the question of whether or not drinking alcohol can affect their fertility.