How can stress contribute to acne outbreaks?

Stress can significantly contribute to acne outbreaks primarily by triggering hormonal changes in the body. When a person experiences stress, the body responds by releasing stress hormones, particularly cortisol. Elevated cortisol levels can lead to an increase in sebum production and overactivity of the sebaceous glands. This excess oil can clog pores, making it easier for acne-causing bacteria to thrive and resulting in inflammation and breakouts.

Additionally, hormonal changes due to stress can also influence other hormones, like androgens, which can further increase oil production. Thus, the relationship between stress and hormonal alterations creates an environment conducive to acne development, making this choice the correct answer.

The other options do not accurately describe the direct connection between stress and acne. Increased blood circulation, for instance, does not necessarily lead to acne and instead may support skin health. Reducing cell turnover and enhancing moisture levels are generally beneficial for skin health and are not related to the exacerbation of acne through stress.