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A Mayo Clinic expert shares what you need to know about expiration dates for at-home COVID-19 tests. Find out if these tests can detect new COVID-19 variants and what to do if the test is positive.

Vaccines have prevented millions of cases of infectious diseases like smallpox, polio and measles. Read why vaccines are the best defense against certain diseases, and get answers to common questions.

Winter delivers a double whammy of cold temperatures and holiday stress. Instead of reaching for comfort food to cope, try these 8 tips for maintaining a healthy weight.

If nonsurgical treatments have failed to improve stress, strain and pain in your back, surgery may be the next option. Learn about the two categories of back surgery and when each is recommended.

Fifty million U.S. adults don't get enough sleep. Read 8 Q&A to discover how a sleep study can shed light onto what's happening during the dark of night.

Hiking, swimming, yoga, chasing her grandchildren — Susan Girdhari leads about as active a lifestyle as one can get. But that wasn’t always the case.

Knowing and understanding key heart numbers can help you and your health care team determine your risk for developing heart disease. Here's what you need to know about blood pressure.

Love can make your heart feel all aflutter. But if you're feeling weakness, shortness of breath or chest discomfort, it may be atrial fibrillation. Learn more about this treatable condition.

Your child's eye health is an important part of his or her overall heath and ability to learn. Find out how to protect your child's vision with regular eye screenings and when to seek a comprehensive ...

Men are less likely than women to have preventive screenings and regular exams. Learn why men should reconsider their reservations and avoid a treatable situation turning deadly.