Men carry the seeds of their own destruction in the genes present in their sperm, research suggests. Scientists working on mice have highlighted a specific gene that, although carried by both sexes, appears to be active only in males.
They believe it allows males to grow bigger bodies - but at the expense of their longevity.
The researchers said in nature males tended to concentrate resources on building a large body, because strength and bulk help them fight for mating opportunities with females. In contrast, females tended to conserve energy for breeding and providing for their offspring.
03 December 2009
You were made as well as we could make you. The candle that burns twice as bright, burns half as long, and you burned very, very brightly Roy.
BBC: Men's genes 'may limit lifespan'