The American Psychological Association has issued its first official warning against toxic masculinity.

The new "Guidelines for the Psychological Practice with Boys and Men," marks the first-ever report published by the association aimed at helping practitioners care for their male patients"despite social forces that can harm mental health."

Citing more than 40 years of research, the APA warns against the "masculinity ideology," which it defines as "a particular constellation of standards that have held sway over large segments of the population, including: anti-femininity, achievement, eschewal of the appearance of weakness, and adventure risk and violence."