to create human sperm and are a step closer to producing sperm and eggs from stem cells. Watch this space…Test that reads your biological clockSoon you’ll be able to take a test to find out how many childbearing years you have left. The DNA test being

, it damages the sperm DNA and passes on a risk of cancer to your child.3.    Avoid recreational drugs, as they can affect sperm quality.4.    Keep alcohol to a minimum – try and give up the beer and keep to just an occasional glass of wine; red is best for its

of hearing it, but there’s more proof that daily sex can improve your chances of conceiving. A recent study into male infertility found that DNA damaged sperm fell by 26 percent when couples had sex every day.Cut out caffeine and boozeYou’re as likely