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It seems like something from a science fiction novel, but it's not: the human body has a "second brain" composed of two thin layers of more than 100 million nerve cells that run from the esophagus to the tail end of the body. It is a technical network that works independently of the brain and controls its own reflexes and senses. Information and signals are passed through the complex network of neurons to coordinate efforts and move food through the digestive system.

The harms of sugar are being noticed around the world, with the UK even taxing sugary drinks and proposing shifts in packaging for sugary products. Has Sugar Become the Next Smoking?

Have you heard about "bioavailability" and you're not sure what it means? Check out our blog for a simple breakdown of what the concept is.

Nearly 70% of American adults are magnesium deficient, which isn't good since it's necessary for so much of your body's functioning. Discover why it matters and how to get more magnesium in this Health By Principle blog.

The science behind intermittent fasting is actually fascinating. Researchers from Stanford University and Johns Hopkins University discovered that the combination of intermittent fasting with a ketogenic diet can have all sorts of benefits for the human body, including fighting migraines, Alzheimer's disease, multiple sclerosis and even some forms of cancer.

The American Heart Association, the American College of Cardiology, and nine other groups have redefined what is considered high blood pressure: 130 over 80 instead of the former 140 over 90. The former figure has been standard for 14 years. (Normal blood pressure remains less than 120 over 80.)