human 609 Humans 491 male 434 female 399 Article 373 adult 331 controlled study 313 Male 278 Female 272 Adult 198 oxidative stress 198 psychology 183 nonhuman 163 mental stress 160 Stress, Psychological 142 major clinical study 137 depression 126 middle aged 123 stress 119 posttraumatic stress disorder 118 metabolism 114 adolescent 113 young adult 113 Stress 108 article 107 Young Adult 105 Middle Aged 103 Adolescent 100 physiological stress 99 Depression 93