In addition to showing masculinity, men with beards will help protect, moisturize the skin, prevent dirt, even prevent cancer.
According to a recent study, men who like to say jokes about sex are more likely to feel insecure about their masculinity.
A study by Indiana University neurologist Heather Rupp said the status of a partner affects women's concerns.
Men with scars on their faces, especially those that appear obvious when he is angry, are particularly attractive to women according to a study in the UK.
Testosterone is a hormone with reputation, associated with masculinity. However, according to new findings, testosterone and impulsivity are proportional to each other.
A recent study shows that in the past two decades, the characteristic male testosterone levels in men tend to decrease.