For the most part, we take our brains health for granted. Even if we are on a health journey, we never think about the brain (or not in the past, anyway). We attend to all other organs of the body, not to the brain. But recently the brain health paradigm is changing. There is compelling evidence that the brain is connected with the gut and the heart, and cognitive decline conditions such as Alzheimer’s are no longer mysterious conditions that come out of nowhere due to simply genetic predisposition. The new paradigm is that cognitive decline is a lifestyle, autoimmune condition, with a complexity of root factors that need to be addressed. The bad news is that living a classic western lifestyle is most probably leading us to neurodegeneration, but the good news is that we can do something about it before it happens. And sometimes is as simple as changing your diet or making sure you sleep better. Sometimes is more complicated, that’s why I decided to gather all the information I came across so far and put it in this article in a form that easy to digest and to make you take action (I hope!). Disclaimer: these are not my personal opinions, these are conclusions taken by pioneers, scientists, medical experts who have studied cognitive decline in the past two decades.