Which of the following is not a cause of mental emotional illness?

a) Genetic predisposition

b) Traumatic life experiences
c) Chemical imbalances in the brain
d) Lack of physical exercise

The correct answer is d) Lack of physical exercise. Physical exercise has been shown to have positive effects on mental and emotional well-being and can be beneficial in managing mental health conditions. However, it is not considered a direct cause of mental and emotional illness.