Anxiety and Depression:

David C. Geary:

"anxiety is an affective mechanism that reduces behavioral engagement in risky and potentially harmful activities (Maner et al., 2017)."

"depression is typically associated with social withdrawal and self-assessment as being of low status and thus has the potential to compromise status striving (Price, Sloman, Gardner, Gilbert, & Rohde, 1994)."

"anxiety and depression are useful proxies for men's ability to cope with the psychological stressors of male-male competition."