Whether you're throwing a baseball, or doing a cognitive task, you may be using more brainpower than you think. The question is, how will a little outside pressure affect your performance?

The brain constitutes only about 2 percent of the human body, yet it is responsible for all of the body's functions. Learn about the parts of the human brain, as well as its unique defenses, like the blood brain barrier.

Joel has decided to have his ex-girlfriend, Clementine, erased from his memory because she had erased him from her memory. At the start of the procedure, the "doctors" put items that remind Joel of Clementine in front of him as they monitor his brain activity. Parts of his brain light up on the machine as he thinks about Clementine. Joel's thoughts are illustrated as incoherent events as the procedure progresses.

Scientists are trying to understand how the brain forms and processes emotions. They are conducting research on the brain patterns of positive and negative emotions to understand the brain a little bit better.

There are different types of thinking that occurs in the brain: system 1 (fast and immediate), and system 2 (longer thought processes). These systems work together to create thoughts and answers in your head.