How does the quality of life and the underlying biochemical indicators correlate with the performance in academic examinations in a group of medical students of Sri Lanka?

Background: Individual variation of examination performance depends on many modifiable and non-modifiable factors, including pre-examination anxiety. Medical students' quality of life (QoL) and certain biochemical changes occurring while they are preparing for examinations has not been explored.

Purpose: We hypothesize that these parameters would determine the examination performance among medical students.