Mitra Malek writes about wellness. A yoga teacher since 2006, she has been a contributing editor and a senior editor for Yoga Journal. She's also a hard news journalist, whose work has appeared in The Washington Post and USA Today. Learn more at www.mitramalek.com.
You need vitamin B-12 to function. Without it, everything from your genetic code to your nerves suffers. Learn more about this vital nutrient’s role in the body, and what you can do to ensure you’re getting enough.