Your brain weighs in at only three pounds, makes up only 2% of your body weight and is 70% fat. Yet it controls every function in your body, determines how you think and feel and stores every experience, every memory you ever had.  

With its up to 500 trillion synaptic connections, your brain is easily the most powerful machine in the world. These connections are what create your thoughts, what drive your emotions, and what control your behaviors. Even more incredibly: This amazing machine is constantly changing through a process known as brain plasticity. And you can take advantage of this process to improve and enhance your brain's jaw-dropping powers—at any age.