COVID-19: What you need to know
Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more conditions.
Information to help you during a medical emergency.
Disclaimer: This information is not intended as a substitute for professional medical advice, emergency treatment or formal first-aid training. Don't use this information to diagnose or develop a treatment plan for a health problem or disease without consulting a qualified health care provider. If you're in a life-threatening or emergency medical situation, seek medical assistance immediately.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.
A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.
This site complies with the HONcode standard for trustworthy health information: verify here.