Cancer Find out about the steps you can take to help prevent cancer. Diabetes You can do a lot to lower your risk for type 2 diabetes – get started now. Heart Health Keep your heart healthy and lower your risk of heart disease and heart attack. HIV and Other STIs Check out our tips on protecting yourself from sexually transmitted infections (STIs) like HIV. Obesity Get tips to help you balance the calories you eat with the calories you burn (use up). Substance Use and Misuse Learn about the health effects of alcohol, tobacco, and drugs — and how to talk about substance use.