Sleep
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Sleep aids: Understand options sold without a prescription
Get the facts on common sleep aids sold without a prescription, including precautions and side effects.
Napping: Do's and don'ts for healthy adults
Napping can benefit your health. Find out how to make the most of a nap.
Sleep tips: 6 steps to better sleep
Better sleep can be yours! Consider sleep tips for the weary.
Sleep aids: Could antihistamines help me sleep?
Antihistamines can be somewhat effective as a sleep aid — but only for occasional sleeplessness.
Ankylosing spondylitis
Learn about this inflammatory disease that can cause some of the vertebrae in the spine to fuse over time.
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Melatonin side effects: What are the risks?
Melatonin is generally safe for short-term use but can cause side effects.
How many hours of sleep are enough?
Wonder how many hours of sleep are enough? A Mayo Clinic specialist offers guidelines.
Feminizing surgery
Find out how feminizing surgical procedures can help better align the body with a person's gender identity.
Masculinizing surgery
Find out how masculinizing surgical procedures can help better align the body with a person's gender identity.
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