A nuclear stress test shows how well blood travels through your heart at rest and exertion. Doctors often use it to check for coronary artery disease (CAD). Research suggests nuclear stress testing ...

Chronic fatigue, unexplained weight loss or gain, infertility, and hair loss can all signal a hormonal imbalance. You might consider a hormone test if you’re experiencing these or more. Hormone tests ...

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New guidelines for managing cholesterol call for more aggressive prevention and earlier treatment, including a recommendation that all adults be tested once for lipoprotein(a), a genetic risk marker ...