Women outlive men in nearly every corner of the globe and specifically in the US by more than 7 years. Men are more violent by nature than women. In 1987 men committed seven times more homicides and aggravated assaults than women. Men also caused two thirds of all road accidents. Numerous studies have shown that aggressive behaviour is closely linked with high testosterone levels.
Men have higher levels than women.
This level peaks when men are young adults, which is also when they commit the most crimes and get in the most accidents. Yet testosterone decreases in production with men over time, while after menopause it increases for women. Men's blood quantity is approxiametly 1.5 gallons, where as women average .875 gallons. Women usually have more accuracy at identifying odours and tastes, have sharper vision, and are better at hearing high sound frequencies. They also perform left-brained activities better than men, such as processing and learning language.