Sleep
Learning Center
Melatonin side effects: What are the risks?
Melatonin is generally safe for short-term use but can cause side effects.
Valerian: A safe and effective herbal sleep aid?
Valerian — Can this sleep aid help you sleep better?
How many hours of sleep are enough?
Wonder how many hours of sleep are enough? A Mayo Clinic specialist offers guidelines.
High cholesterol treatment: Does cinnamon lower cholesterol?
Can cinnamon lower cholesterol?
Testosterone therapy in women: Does it boost sex drive?
This type of hormonal therapy may boost sex drive for some women, but its long-term safety is unclear.
Do infrared saunas have any health benefits?
How is an infrared sauna different from a traditional sauna? Light provides the heat.
High-dose vitamin C: Can it kill cancer cells?
High-dose vitamin C has been touted by some as an effective alternative cancer treatment.
Natural remedies for depression: Are they effective?
For some people, certain herbal and dietary supplements seem to help with depression, but more studies are needed on their effectiveness and side effects.
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.
Probiotics and prebiotics: What you should know
Probiotics are foods or supplements that contain 'good' bacteria that might help treat or prevent illness. Should they be part of your diet?