The big danger of masculinity for men

Even if the " Macho Man " imitates women 's masculinity , but the big thing is the price of health may also suffer .



Recent research has considered the ' Macho Man ' has a variety of men , making them vulnerable to infection and disease resistance risk more than one.



23 women and 34 men , researchers influenza vaccine and then studied their physical changes .

According to the researcher , '' This is the first study in which Testosterone

level of research so far , have shown the relationship of genes and resistance . ''...