Yoga and meditation has been proven to increase mental stamina and concentration.

Through yoga, natural joy arises. When yoga is included in the workplace, staff are happier, more helpful and productivity increases dramatically. Regular yoga practice in the workplace gives staff something to look forward to and has been proven to decrease absenteeism. Stress levels will decrease significantly in the workplace through a regular yoga session, bringing calm, stability and oneness to the working environment.

Unmanaged workplace stressors relate to high staff turnover, an increase in unplanned absense, workplace conflict, reduced work performance, customer complaints, staff replacement costs and costly workers’ compensation claims.”
Preventing and Managing Psychological Injuries in the Workplace. Comcare Pub 8 (Jan 04): p.3