
Time: When your body really starts going downhill.
There's no denying the ticking of a woman's biological clock - but men are not immune, either. French doctors have found that the quality of sperm starts to deteriorate by 35, so that by the time a man is 45 a third of pregnancies end in miscarriage.Here, with the help of leading clinicians, Angela Epstein identifies the ages when different parts of the body start to lose their...