Study reports that age-related loss of the Y chromosome in men is linked to heart muscle scarring and an increased risk of heart failure. The findings may explain why men tend to die, on average, seven years younger than women.
Despite the Y chromosome containing very few genes, it can dramatically alter male body size and may facilitate the evolution of sex differences.
Math models and computer simulations have helped researchers answer a perplexing question about a biological event that occurred 7,000 years ago.
According to researchers, men with the highest fraction of blood cells without the Y chromosome were more likely to be diagnosed with Alzheimer's disease.
