There are a number of biological differences between men and women. Men have a higher average muscle mass than women, as well as higher levels of testosterone and red blood cells. This makes them typically stronger than women. Women, on the other hand, tend to have higher levels of body fat and a higher average body weight than men. Women also have a higher average bone density and a lower risk of developing cardiovascular diseases. Women also have a much higher concentration of the hormone estrogen, which affects the reproductive system, bone health, and other bodily functions.
Women also tend to have higher levels of the hormone oxytocin, which is associated with emotional bonding. This hormone also plays an important role in breastfeeding and childbirth. Moreover, the reproductive systems of men and women are different. Men produce sperm, while women produce eggs. Men have a prostate gland, while women do not. Women are capable of carrying a child in the womb and giving birth, while men are not. Finally, men and women typically have different life expectancies. In general, women tend to live longer than men.