Humans 231 Young Adult human 231 young adult 230 adult 218 female 211 male 200 Female 199 Adult 193 Male 187 Adolescent 126 adolescent 126 controlled study 107 Article 97 psychology 89 middle aged 79 Middle Aged 78 physiology 75 major clinical study 73 article 53 mental stress 50 Stress, Psychological 47 human experiment 45 aged 43 Mental Recall 42 recall 42 mental health 41 Aged 40 mental disease 39 child 35