What environmental factor can exacerbate acne?

Humidity and excessive sweat can significantly exacerbate acne due to the way these environmental factors interact with skin conditions. High humidity levels can lead to increased oil production in the skin. When the skin becomes oily, it can clog hair follicles, which may result in the development of acne. Additionally, excessive sweating can contribute to acne when sweat mixes with dirt and oil on the skin's surface, creating an environment where bacteria can thrive and lead to breakouts. This combination of factors can inflame existing acne lesions and provoke new ones, making humidity and sweat a notable environmental trigger for acne flare-ups.