have long told us that women live longer than men, but scientists have often been left scratching their heads when trying to figure out why.Demographic statistics in the developed world
Researchers discovered that levels of white blood cells and cytokines, which help to carry messages in the immune system and are responsible for fighting off bacterial infections, decrease more quickly in men than in women.
The findings were published in the open access journal Immunity & Ageing.
"The process of aging is different for men and women for many reasons," explains lead researcher Katsuiku Hirokawa from the Tokyo Medical and Dental University. "Women have more estrogen than men which seems to protect them from cardiovascular disease until menopause. SexRead More »from The secret to women’s longevity? Our immune systems, new study claims