These days it takes more than an apple a day to keep the doctor away. With hectic lifestyles and bad habits like skipping sleep, excess alcohol consumption, and sky-high stress levels, it's harder than ever for most people to stay fit and healthy, much less take extra steps to reduce your risk of diseases like cancer, stroke, and heart disease.

That's why Tiffany Sizemore-Ruiz, D.O., author of the blog SizeMoreHeart.com, pulled together a list of 10 simple rules to stay healthy, happy, and fit... for life!

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