The brain is inarguably one of the most complex organs in the body. Messages sent between neurons in the brain are responsible for our thoughts, perceptions, actions and reactions. Like an intricately wired machine, the brain is the organ that, essentially, controls the entire body. However, with such complexity comes an increased risk of malfunction. In her book, The Human Brain: A Guided Tour, Susan A. Greenfield estimates the number of neurons in the brain to be around 100 billion. …
