Prosocial behavior
Psychology
Irritability
Life satisfaction
Pandemic
Pessimism
Happiness
Coronavirus disease 2019 (COVID-19)
Coping (psychology)
Social psychology
Exploratory research
Population
Anxiety
Clinical psychology
Demography
Medicine
Psychiatry
Sociology
Pathology
Infectious disease (medical specialty)
Anthropology
Philosophy
Disease
Epistemology
