Nutritional supplements
Learning Center
Winter blahs? 4 pro tips to get you off the couch.
Struggling to stay active in winter? We've got you covered with some inside tips and strategies that'll help you keep moving.
What it takes to be agile at any age
It's never too late to start thinking about flexibility and mobility. Use these tips to stay agile well past middle age.
What is wheatgrass? Why is it in my drink?
Wheatgrass is a popular addition to smoothies and other drinks. While it's a rich source of nutrients, it's not a disease cure-all.
Want to stay hydrated? Drink before you're thirsty
Did you know you're already dehydrated when you start to feel thirsty? Don't wait to take a drink. Instead, practice these simple tips to master a hydration habit that lasts for life.
Vitamin D toxicity: What if you get too much?
Understand the risks of too much vitamin D, including a toxic reaction.
Vitamin D deficiency
What are the risks of too little vitamin D?
Vitamin C: An essential nutrient
Vitamin C is a water-soluble vitamin that supports normal growth and development and helps your body absorb iron. Because your body doesn't produce or store vitamin C, it's important to include vitamin C in your diet. For most people, an orange or a cup of strawberries, chopped red pepper, or broccoli provides enough vitamin C for the day.
Trichotillomania (hair-pulling disorder)
In this mental health condition, people can't resist urges to pull out hair from their body. They do this often. Therapy may help reduce or stop urges.
Too much vitamin C: Is it harmful?
Vitamin C is an essential nutrient, but too much carries its own risks.
Stress fractures
Stress fractures are tiny cracks in bones often caused by overuse or osteoporosis. Learn how to prevent and treat them.
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