Firstly, working out elevates your heart rate which increases blood flow to your skin cells. This carries oxygen and vital nutrients to your skin. At the same time it takes away waste products, including free radicals, that can damage your skin.
Secondly, exercising regularly helps to reduce stress. Many inflammatory skin conditions – like acne, eczema and psoriasis - can be aggravated by stress. Reducing those stress levels with regular exercise helps keep them under control.
Try to have a full workout session at least three times a week. But also try to incorporate some form of exercise into your life every day, even if it’s only a short walk.