This may be the secret to feeling younger

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Email not displaying correctly? View it in your browser. This May Be the Secret to Feeling Younger and Living Longer Does Sunscreen Ever Expire? Here's What to Know Why Songs Get Stuck in Your Head, According to Science Burning health questions? Email us TIME may receive compensation for some links to products and services in this email. Offers may be subject to change without notice.   Connect with TIME Health via Facebook | Twitter | Newsletters   UPDATE EMAIL   UNSUBSCRIBE   PRIVACY POLICY    YOUR CALIFORNIA PRIVACY RIGHTS   TIME Customer Service: 3000 University Center Drive, Tampa, FL 33612-6408   Questions? Contact health@time.com   Copyright @ 2017 Time Inc. All rights reserved.