Staying healthy
Learning Center
Sed rate (erythrocyte sedimentation rate)
Sed rate is a blood test that can reveal inflammatory activity in your body. It's often used to help diagnose conditions affecting your joints or muscles.
STD testing: What's right for you?
Find out how your risk factors affect the types of tests you'll need for sexually transmitted infections (STIs).
Rheumatoid factor
Rheumatoid factor — This blood test can help diagnose autoimmune disorders such as rheumatoid arthritis, Sjogren syndrome and lupus.
Reactive airway disease: Is it asthma?
Reactive airway disease is a general term that doesn't indicate a specific diagnosis.
Prostate cancer: Does PSA level affect prognosis?
Find out what your PSA level may mean for your prostate cancer prognosis.
Prostate cancer screening: Should you get a PSA test?
Learn about the pros and cons of the PSA test so you're ready to talk about prostate cancer screening with your doctor.
Posture: Align yourself for good health
Good posture helps prevent pain and injury, boosts confidence and mood. Improving your posture will take time and effort, but the benefits are worth it.
Posture check: Do you stand up straight?
Good posture minimizes strain on your joints and muscles, which can help prevent aches and pains. So what's good posture? When you're standing, keep your chest held high and your shoulders back and relaxed. Try not to tilt your head forward, backward or sideways. Pull in your abdomen and buttocks. Make sure your knees are relaxed, not locked. Keep your feet parallel and your weight balanced evenly on both feet.
Positron emission tomography scan
Learn how this imaging scan can play an important role in early detection of health problems, such as cancer, heart disease and brain disorders.
Polysomnography (sleep study)
Your health care provider may order this test if a sleep disorder such as sleep apnea is suspected. Learn how to prepare and what to expect.
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