men's lifespan

Compared to their non-smoking peers, men who smoke triple their risk of losing their Y sex chromosomes, according to a new study.

The average life expectancy of women is 5 to 10 years higher than that of men. From before being born to the critical stages of life, men are more likely to die than women.

Scientists at Monash University in Melbourne, Australia and Lancaster University in the UK said that women and men all have mitochondrial DNA, however, only women have immunity.