Mental health Mental illness 255 Study and teaching 201 Diagnosis 194 Psychological aspects 121 Psychology 76 Mental health services 60 Post-traumatic stress disorder 60 Treatment 58 Patients 50 Veterans 49 Women 38 Older people 37 History 36 Prevention 36 Delusions 35 Teenagers 34 Health 31 Social aspects 30 Students 30 Health and hygiene 29 Counseling of 28 Rehabilitation 26 Soldiers 24 Depression, Mental 23 Families 22 Social conditions 22 Self-care, Health 21 Psychoses 20 Services for 19