Examining Dark Triad traits in relation to sleep disturbances, anxiety sensitivity and intolerance of uncertainty in young adults.

Background: The Dark Triad (DT) describes a set of three closely related personality traits, Machiavellianism, narcissism, and psychopathy. The aim of this study was to examine the associations between DT traits, sleep disturbances, anxiety sensitivity and intolerance of uncertainty.

Method: A total of 341 adults (M=29years) completed a series of questionnaires related to the DT traits, sleep disturbances, anxiety sensitivity, and intolerance of uncertainty.

Quality of life among human immunodeficiency virus-1 infected and human immunodeficiency virus-1/hepatitis C virus co-infected individuals in Iranian patients.

Background: The aim of this study was to compare the quality of life (QOL) of people infected with both hepatitis C virus (HCV) and human immunodeficiency virus (HIV). The study design was a cross sectional descriptive survey, using self administered questionnaires.

Materials And Methods: A convenience sample of 242 patients (131 of them HIV/HCV), Iranian adults (aged 18-57) living with HIV/AIDS, was recruited from outpatient referring to Imam Khomeini Hospital behavioral counseling center in Tehran city, Iran.

Examining Dark Triad traits in relation to mental toughness and physical activity in young adults.

Objective: The Dark Triad (DT) describes a set of three closely related personality traits: Machiavellianism, narcissism, and psychopathy. Mental toughness (MT) refers to a psychological construct combining confidence, commitment, control, and challenge. High MT is related to greater physical activity (PA) and, relative to men, women have lower MT scores.