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LIVE Twitter Chat with CNN's Dr. Sanjay Gupta TODAY at 2:30 pm ET.

Tweet: @CNNHealth  Hashtag: #AskSanjay

Mayo Clinic neurologists, Ronald Petersen, M.D., Ph.D, and Yonas Geda, M.D., will join the chat to discuss brain health and answer your questions! 

CNN chief medical correspondent Dr. Sanjay [...]

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This video series is designed to educate, entertain and deliver life-saving tips with high-tech mannequins.

Click here to learn more about the project and follow #SavingLivesWithGus

Journalists: The broadcast quality video is available in the downloads

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Nearly 70 percent of Americans are on at least one prescription drug, more than half take two, and 20 percent of patients are on five or more prescription medications. That's according to a new study published online in the journal Mayo Clinic Proceedings. Researchers say the data is valuable because it gives insight into prescribing practices. The findings reveal antibiotics, antidepressants and painkilling opioids are most commonly prescribed.

Study author Jennifer St. Sauver, Ph.D., a member of the Mayo Clinic Population Health Science [...]

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Accidental overdose from prescription pain medication is on the rise. As a matter of fact, the Centers for Disease Control and Prevention reports that the number of overdose deaths has gone up 300 percent since 1999. Mayo Clinic's Dr. Christopher Wittich says it's possible to reverse this trend with education. Vivien Williams reports. [TRT 2:11]

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DEAR MAYO CLINIC: I just read that the treadmill stress test is no longer recommended. What’s the reasoning behind this? I’ve had the test before, and it seems like a good way to find heart problems.

ANSWER: A treadmill stress test can be helpful if a doctor suspects someone has heart problems or if a person is at high risk for heart disease. However, this test is no longer recommended for people at low risk for heart disease who do not have symptoms. For that group, the test is not needed because assessing risk factors such as age, smoking, cholesterol, blood pressure, diabetes and family history has been shown to be nearly as effective in identifying an individual’s potential for heart disease.

A treadmill stress test gathers information about how well your heart works as you exercise. Because exercise makes your heart pump harder and faster than it does during most daily activities, the test may be able to reveal problems within your heart that might not be noticeable otherwise.

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Mayo Clinic is named a Top Hospital for Hispanics by Hispanic Network Magazine in its 2013 “Best of the Best” issue.  Mayo Clinic’s designation as a Top Hospital for Hispanics reflects its recently enhanced efforts to better connect with Spanish-speakers and deepen the historic and multifaceted bond between Mayo Clinic and Hispanic communities globally. This outreach is occurring through community collaborations around patient care, research and education.

“Diversity at Mayo Clinic is as much our future as [...]

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Mayo Clinic and other researchers have shown that a vaccine given to newborns is at least 60 percent effective against rotavirus in Ghana. Rotavirus causes fever, vomiting and diarrhea, which in infants can cause severe dehydration. In developed nations, the condition often results in an emergency room visit or an occasional hospitalization, but is rarely fatal. In developing countries, however, rotavirus-related illness causes approximately 500,000 deaths per year.

The findings appear this week in The Journal of Infectious Diseases.