All of us age. Why we age remains somewhat of a mystery. How we age – and the manifestations of aging that go with it can be modified. To age in good health we must be aware of the factors affecting the gut, arteries and bone metabolism. Many people don’t know, for example, that at least 70% of our immune system is regulated by the GI tract or that 90% of our brain neurotransmitters (including serotonin) is produced there as well. In a practical sense, our brains only work as well as our digestion does. Inflammation that remains unchecked tend to accelerate the aging process. More on this later.