The human brain is just 2% of the weight of the whole body but uses an amazing 20% of the body's energy. Not only does it consume this energy but a fifth of the oxygen from every breath you take is used by it. The brain divides incoming information and sorts it by how long it should be stored. Information needed for only a couple seconds is gathered and stored in the sensory memory. After that, the information is either deleted or sent on to to the short-term or working memory where it typically remains 30 seconds. Then, it is moved to long-term memory where the information is stored. The brain holds two types of long term memory. Procedural memory is the memory of actions and habit, long formed through training, you rely on it without noticing. Declarative memory is the domain of the mind, of names, of words and experiences.
Scientists have long thought that as the cells in the brain, neurons do not divide there would be no way to increase the power of the mind beyond the gifts you were given at birth. However, scientists have established recently that the brain is capable of rewiring in better and stronger ways. Our reliance on modern technology in our daily lives keeps us plugged in, but are we switched on? You can keep your brain healthy and active by continuing to stimulate your synapses. This stimulation will reinforce the connections between neurons making your brain faster and more capable. Doing this also increases the supply of oxygen and nutrients to the active neurons keeping the brain healthier for longer.