Teen health
Learning Center
Video: Keratoconus
Scleral contact lenses may be an alternative to surgery for many patients with keratoconus.
Video: What is blood pressure?
Watch this video to see what your blood pressure reading means.
Vitamin C: Can it prevent colds?
In most cases, vitamin C supplements won't help prevent colds. However, taking vitamin C before the onset of cold symptoms may shorten the duration of symptoms. Vitamin C may provide benefit for people at high risk of colds due to frequent exposure: for example, children who attend group child care during the winter.
Vitamin D and MS: Is there any connection?
Some research suggests that vitamin D may reduce the risk of multiple sclerosis (MS).
Vitamins for MS: Do supplements make a difference?
Can vitamin supplements improve MS symptoms?
Von Willebrand disease
Learn more about the symptoms, causes, diagnosis, treatment of this inherited bleeding disorder in which blood doesn't clot well.
Want a healthier dinnertime? Science says change your eating space
How and where you eat matters. From your plate size to your table, these expert-approved tips will help you navigate dinnertime like a seasoned pro.
Ward off dry skin
To keep skin moist and healthy: 1. Moisturize. Moisturizer seals skin to keep water from escaping. 2. Keep bath and shower time to 10 minutes or less. Turn the dial to warm, not hot. 3. Use cleansing creams or gentle skin cleansers and bath or show gels with added moisturizers.
Warm-mist versus cool-mist humidifier: Which is better for a cold?
Warm-mist and cool-mist humidifiers are equally effective in humidifying the air.
Warrior 1
Try this simple yoga pose.
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