High alpha-carotene levels associated with longer life

High alpha-carotene levels associated with longer life: Oxygen-related damage to DNA, proteins and fats may play a role in the development of chronic diseases like heart disease and cancer, according to background information in the article. Carotenoids -- including beta-carotene, alpha-carotene and lycopene -- are produced by plants and microorganisms and act as antioxidants, counteracting this damage.