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Learning Center
Natural acne treatment: What's most effective?
Natural acne treatment comes in various forms. Some may be beneficial.
Melatonin side effects: What are the risks?
Melatonin is generally safe for short-term use but can cause side effects.
Mangosteen juice: Can it relieve arthritis pain?
Some marketers claim mangosteen juice has anti-inflammatory benefits. Find out what the research says.
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.
L-arginine: Does it lower blood pressure?
This supplement may help some people lower their blood pressure. Learn who might benefit and who should stay away from it.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
How many hours of sleep are enough?
Wonder how many hours of sleep are enough? A Mayo Clinic specialist offers guidelines.
High-dose vitamin C: Can it kill cancer cells?
High-dose vitamin C has been touted by some as an effective alternative cancer treatment.
High cholesterol treatment: Does cinnamon lower cholesterol?
Can cinnamon lower cholesterol?
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