Elementary students
Learning Center
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
Isometric exercises: Good for strength training?
Learn more about isometric exercises that contract a particular muscle or group of muscles.
Kids and exercise: How much activity do they need?
You know your kids should exercise, but how much? Find out and get ideas for helping children and adolescents be more physically active.
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.
Loss of taste and smell: Natural with aging?
Aging can play a role in the loss of taste and smell — but not always.
Low blood sodium in older adults: A concern?
For older adults, low blood sodium, known as hyponatremia, can cause death if left untreated.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Manage your health and time while balancing work demands
Get tips to manage your health, stay focused, and use your time well while dealing with job pressures and demands.
Melatonin side effects: What are the risks?
Melatonin is generally safe for short-term use but can cause side effects.
Neti pot solution: Can I make my own?
A homemade neti pot solution is just as effective as the over-the-counter variety.
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