Type D Personality Independently Predicts Erectile Dysfunction in Taiwanese Young Men.

Background: Studies have demonstrated that erectile dysfunction has a well-established bidirectional relationship with depression and have indicated an independent association of type D personality (TDP) with depression. Nevertheless, the relationship of erectile dysfunction with TDP has not been sufficiently examined.

Aim: To examine the associations among depression symptoms, TDP, and erectile dysfunction.

The dose-response relationship between cumulative lifting load and lumbar disk degeneration based on magnetic resonance imaging findings.

Background: Lumbar disk degeneration (LDD) has been related to heavy physical loading. However, the quantification of the exposure has been controversial, and the dose-response relationship with the LDD has not been established.

Objective: The purpose of this study was to investigate the dose-response relationship between lifetime cumulative lifting load and LDD.