human 752 Humans 523 female 313 male 294 adult 293 article 255 Article 219 Female 182 Male 166 controlled study 144 Adult 125 human experiment 109 child 89 systematic review 88 COVID-19 86 adolescent 84 middle aged 82 Malaysia 80 United States 80 clinical article 80 psychology 80 procedures 77 young adult 76 Adolescent 75 aged 72 case report 70 Child 67 physiology 67 major clinical study 66 sustainability 65