Fitness basics
Learning Center
The dawn phenomenon: What can you do?
Take steps to prevent this early-morning increase in blood sugar.
Thyroid disease: Can it affect a person's mood?
Thyroid disease can affect mood, but those symptoms are rarely the only evidence of thyroid disease.
Too sick to exercise?
The common cold doesn't have to keep you on the sidelines. Mild to moderate exercise is usually OK if your symptoms are all above the neck, such as a runny nose, nasal congestion, sneezing or minor sore throat. However, if your symptoms are below the neck, such as chest congestion, a hacking cough or upset stomach, delay your workout. And don't exercise if you have a fever, fatigue, widespread muscle aches or a contagious illness.
Toothache: First aid
Until you see a dentist, use floss to remove any food particles, take an over-the-counter (OTC) pain reliever, and apply an OTC antiseptic to the gum area.
Transurethral incision of the prostate (TUIP)
Learn about this procedure for treating an enlarged prostate, including how it's done and possible risks and benefits.
Transurethral microwave thermotherapy (TUMT)
Learn about this minimally invasive procedure for treating an enlarged prostate, including how it's done and possible risks and benefits.
Transurethral resection of the prostate (TURP)
Learn about this procedure used to treat urinary problems caused by an enlarged prostate gland.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Unexplained weight loss
Unexplained weight loss has many causes — some serious. Find out when losing weight without trying calls for a medical evaluation.
Unusual COVID-19 symptoms: What are they?
COVID-19 can cause a wide variety of symptoms, some more common than others. Learn about how COVID-19 can make you feel.
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