Nutritional supplements
Learning Center
Rheumatoid arthritis: Can it affect the eyes?
Although rheumatoid arthritis is primarily a joint disease, it occasionally affects the eyes.
Rheumatoid arthritis
This chronic inflammatory disorder can affect more than just your joints. It can also damage your skin, eyes, lungs, heart and blood vessels.
Puberty blockers for transgender and gender-diverse youth
Understand how puberty blockers work to suppress puberty. Learn about their benefits, side effects and long-term effects.
Prostate cancer metastasis: Where does prostate cancer spread?
Prostate cancer can spread (metastasize) just about anywhere in the body, but it's most likely to spread to the lymph nodes and bones.
Pros and cons of taking a magnesium supplement
Magnesium supplements are popular but not risk-free. Fortunately food sources are easy to add to your diet.
Probiotics and prebiotics: What you should know
Probiotics are foods or supplements that contain 'good' bacteria that might help treat or prevent illness. Should they be part of your diet?
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
Prenatal vitamins: OK for women who aren't pregnant?
Prenatal vitamins: Why they might not be suitable if you're not pregnant.
Postpartum complications: What you need to know
Learn about self-care after childbirth and the symptoms of a possible problem.
Polyhydramnios
Learn about the symptoms, causes and treatment for this condition, in which too much amniotic fluid builds up during pregnancy.
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