Brain is an amazing organ that controls the whole body. It keeps receiving information from inside and outside the body, processes it and also reacts to it within a matter of fraction of a second. Here are some amazing facts about human brain.
An average human adult brain weighs about 1.5 kilograms, making up to only 2% of the body weight.
Brain comprises about 60% of fat and is the organ that contains maximum percentage of fat.
When awake, human brain can generate electrical energy of about 23 watts, enough to light a bulb.
Information to the brain travels at a speed of up to a whooping 268 miles per hour (426 kilometers per hour), as an electrical impulse from one neuron (nerve cell) to another as a relay.
A piece of brain tissue of the size of a grain of sand can contain 100,000 neurons and 1 billion nerve junctions (synapses).
The total length of blood vessels in the brain is about 100,000 miles161000 kilometers.
One heart beat sends 20 to 25 percent of the blood from heart directly to the brain.
The brain consumes almost 25% of your energy and this energy is required on a constant basis, even when the person is sleeping.
Blood-brain barrier is a semi-permeable membrane that is present at the junction of brain and spinal cord separating it from other cells and tissues. This barrier protects the nerve cells against circulating toxins or pathogens that can cause disease or disruptions in the brain.
Until the age of 25 years, the brain keeps developing. The maturity of the brain takes place from back to front. So, the frontal lobes that are center for planning, reasoning and judgement are the last to be fully developed.
The cerebrum is the largest part of the brain and has all the sensory and motor nerves. It is divided into two almost symmetrical parts, joined by a bundle of nerve fibers called corpus callosum. The left part of the cerebrum is connected to the right part of the rest of the body and vice versa.
Each time a new thought is formed or a new learning takes place, a connection is formed in the brain.
The harder your thought process is, the brain uses more oxygen and fuel from the blood.
Too much sleep can retard the performance of the brain, and so does too less sleep. About 8 hours of sleep is ideal for optimum brain activity.
The brain does not have pain receptors, yet the pain that is felt is generated by the brain. The brain creates the feeling of pain in the parts of the body to divert the attention to that part of the body and attend to its repair or recovery.