As a powerful antioxidant, vitamin E plays a vital role in protecting the body from many chronic disorders. It may even slow the aging process and guard against damage from secondhand smoke and other pollutants. Circulatory disorders, skin and joint problems, diabetes-related nerve complications, high cholesterol, endometriosis, immune-system function and memory are also believed to benefit from vitamin E. Slow Alzheimer's disease. Prevent or delay cataracts and macular degeneration. Prevent heart disease and related complications. Protect against prostate and other cancers. Retard the aging process and boost immune function. Promote healing of burns, eczema, and other skin problems.