Female female 197 Humans 194 human 194 male 169 Male 165 adult 141 Adult 111 middle aged 72 Middle Aged 71 Article 70 controlled study 65 major clinical study 58 Young Adult 57 young adult 55 Adolescent 46 adolescent 46 article 45 psychology 44 cross-sectional study 43 Cross-Sectional Studies 40 aged 40 physiology 38 questionnaire 36 procedures 35 Aged 34 child 34 human experiment 31 Child 30 Surveys and Questionnaires 26