It is well known that reproductive ability declines with age, in case of men too. However, the fact that most of us are unaware of is that the quality of the sperm too falls down as a man grows older. According to a study conducted on 97 men aged between 22 and 80, the chances of having a healthy baby reduce as the age increase as the sperm steadily became more fragmented. A condition like this makes the baby vulnerable to disease called achondroplasia, commonly known as dwarfism. Therefore, if having a baby is on your mind make sure you plan things at precisely the right time rather than delaying them for worse.