Alternative medicine
Learning Center
Narrow stools: Should I be concerned?
Narrow stools may be a sign that the colon is narrowing or has a blockage.
Nicotine dependence
Nicotine dependence can be tough to kick, but treatments and resources are available to boost your chances of success.
Nighttime headaches: How can I get relief?
"Alarm clock" (hypnic) headaches wake people up. But other nighttime headaches also can disrupt sleep. Relief begins with determining the cause.
Nocturnal panic attacks: What causes them?
Nighttime panic attacks can cause sweating, rapid heart rate, trembling, shortness of breath, heavy breathing, flushing or chills. Learn about treatment.
Omega-6 fatty acids: Can they cause heart disease?
This essential fatty acid is found in certain foods and is recommended as part of a healthy diet.
Orchitis
This inflammation of one or both testicles can cause pain and infertility. It's usually caused by a bacterial infection or the mumps virus.
PSA levels: Can they rise after partial prostate removal?
A number of factors can cause PSA levels to rise after surgery for an enlarged prostate.
PSA test
Learn about this prostate cancer screening test, including why it's done, what to expect, risks and results.
Penile implants
Explore your choices and learn what to expect from penile implant surgery.
Penis fracture: Is it possible?
Know the symptoms of this health concern.
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