Coral reefs are crucial to the ocean's ecosystem, providing sustenance to a quarter of marine life. Today, more than one third of the world's reefs are deteriorating. What's causing coral reef destruction and possible new remedies to address it.
A panel discusses the pros and cons of low-dose aspirin, which has been found to reduce the risk of heart attack and may also help prevent Alzheimer’s disease and some types of cancer.
- Dr. Ernie Hawk chief of the gastrointestinal and other cancer research group in the Division of Cancer Prevention at the National Cancer Institute
- Dr. Alfred Berg professor and chair, department of family medicine at University of Washington and chair of the U.S. Preventive Services Task Force
- Dr. David Meyerson cardiologist at Johns Hopkins University and national spokesperson for the American Heart Association
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