Nutrition basics
Learning Center
Diabetic retinopathy
Good diabetes control and regular exams can help prevent this diabetes complication that affects the eyes. Find out how.
Diabetes: How do I help protect my liver?
How to care for your liver if you have diabetes.
Depression and anxiety: Can I have both?
Depression and anxiety commonly occur together and have similar treatments: counseling (psychotherapy) or medication, such as antidepressants, or both.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
Cryotherapy for prostate cancer
Find out how very cold temperatures are used to freeze tissue and treat prostate cancer. Learn about the side effects and potential benefits of cryotherapy.
Coffee and health: What does the research say?
Has coffee gotten a bum rap? Can it be part of a healthy diet?
Coconut water: Is it super hydrating?
This drink is promoted as "super hydrating." But is it really any better than plain water?
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Chronic pelvic pain
Ongoing pain in the pelvis can be a symptom of another disease or a condition in its own right. Learn how it's diagnosed and treated.
Chart of high-fiber foods
Looking to eat more fiber every day? Here are some common foods that can help.
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