Mean sperm concentrations have declined over 42% over the past 70 years, from 113 million spermatozoa per mL to 66 million. Lifestyle is considered a major contributing factor to declining sperms counts. Lifestyle factors can affect your sperm count or volume, sperm quality, sperm motility and overall sperm health. It takes 10 to 11 weeks for sperm to be produce.
Changing your lifestyle to encourage sperm health will improve sperm health after almost 2 1/2 months. Anything you do that damages sperm will affect them for the next 10 to 11 weeks.
Here are several factors which impact male fertility: