Stress basics
Learning Center
Mononucleosis: Can it recur?
Mono can return in some rare cases. Learn why that happens.
Melatonin side effects: What are the risks?
Melatonin is generally safe for short-term use but can cause side effects.
Measles vaccine: Can I get the measles if I've already been vaccinated?
Is it possible to get measles from someone else if you've been vaccinated?
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Loss of sex drive in men: Natural with aging?
Age-related loss of sex drive is normal, but sometimes an underlying condition is at play.
Isometric exercises: Good for strength training?
Learn more about isometric exercises that contract a particular muscle or group of muscles.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
Intermittent fasting: What are the benefits?
Intermittent fasting isn't new, but it's gaining followers. What's the appeal?
Insomnia: How do I stay asleep?
Waking up in the middle of the night and not being able to get back to sleep is a common form of insomnia. Here's how to fall asleep again.
How to treat baby eczema
Learn simple remedies to easing your baby's discomfort from the pain and irritation of this skin rash.
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