Editor's note
Dear Readers,
This is the fourth year we have devoted the May issue of the Health Letter to answering your questions. It's become one of our favorite issues of the year! Your questions are provocative and interesting; they get us thinking. We hope the answers satisfy your curiosity and provide practical information and insight.
As in previous years, a wide range of topics is covered: everything from ripe cataracts and nuclear cardiac stress tests to coconut oil and aspirin.
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