Fitness basics
Learning Center
Broken hand
You may be at higher risk of a broken hand if you participate in contact sports like football or hockey, or if you have a condition in which bones become thinner and more fragile (osteoporosis).
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Constipation
Learn how to prevent and treat infrequent or painful passing of stool.
Stress incontinence
Movement such as coughing, laughing and running can cause urine to leak for people with this condition. Learn about treatments and self-care.
Erectile dysfunction
Understand what can cause the inability to get and keep an erection firm enough for sex and the possible treatment options.
Encephalitis
Learn about this potentially fatal condition associated with inflammation of the brain and what you can do to prevent it.
Hodgkin lymphoma (Hodgkin disease)
Learn how this cancer differs from other lymphomas. Find out about risk factors and treatments, such as chemotherapy, radiation and bone marrow transplant.
Heatstroke
Know the signs and what to do for this dangerous increase in body temperature.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
Glaucoma
Regular eye exams may catch glaucoma early and save your eyesight. Find out about symptoms and treatment for this vision-stealing eye disease.
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