Author Dean Burnett's new book, The idiot brain : a neuroscientist explains what your head is really up to introduces us to how the brain really works

Did you know that the size of the brain is changing with the weight of a human body? The bigger the body, the smaller the brain. That means overweight and obese people have significantly less brain tissue (by average 6-8 %) than those of normal weight and that may cost them as much as 16 years of life. Our brains are very sensitive organs to nutrition  and can be easily damaged not only by drugs, alcohol and smoking but also by sugar, coffee and soft drinks. All that has been proven by academic research and  the work of Dr. Daniel Amen psychiatrist and brain-imaging expert.