Tell some amazing facts about Human Brain ?

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1. The typical brain comprises about 2% of the body’s total weight, but uses 20% of its total energy and oxygen intake. (3)

Your brain is 73% water. It takes only 2% dehydration to affect your attention, memory and other cognitive skills. (4, 5)

Ninety minutes of sweating can temporarily shrink the brain as much as one year of aging does. (6)

Your brain weighs about three pounds. Sixty percent of the dry weight is fat, making the brain the most fatty organ in the body. (7)

Twenty-five percent of the body’s cholesterol resides within the brain. Cholesterol is an integral part of every brain cell. Without adequate cholesterol, brain cells die. (

No one knows for sure, but the latest estimate is that our brains contain roughly 86 billion brain cells. (9)

Each neuron can transmit 1,000 nerve impulses per second and make as many as tens of thousands of synaptic contacts with other neurons.

. A piece of brain tissue the size of a grain of sand contains 100,000 neurons and 1 billion synapses, all communicating with each other.

All brain cells are not alike. There are as many as 10,000 specific types of neurons in the brain.

. Your brain needs a constant supply of oxygen. As little as five minutes without oxygen can cause some brain cells to die, leading to severe brain damage.

Babies have big heads to hold rapidly growing brains. A 2-year-old’s brain is 80% of adult size.

\As any parent can attest, teenage brains are not fully formed. It isn’t until about the age of 25 that the human brain reaches full maturity.

Brain information travels up to an impressive 268 miles per hour. This is faster than Formula 1 race cars which top out at 240 mph.

Your brain generates about 12-25 watts of electricity. This is enough to power a low-wattage LED light.

. There’s a reason the brain has been called a “random thought generator.” The average brain is believed to generate up to 50,000 thoughts per day.

Every minute, 750-1,000 milliliters of blood flows through the brain. This is enough to fill a bottle of wine or liter bottle of soda.

Your brain can process an image that your eyes have seen for as little as 13 milliseconds — less time than it takes for you to blink.

In general, men’s brains are 10% bigger than women’s, even after taking into account larger body size. However, the hippocampus, the part of the brain most strongly linked with memory, is typically larger in women.

Albert Einstein’s brain weighed 2.71 pounds (1,230 grams) — 10% smaller than the average of 3 pounds (1,400 grams). However, the neuron density of his brain was greater than average.

Neanderthal brains were 10% larger than our Homo sapiens brains.

. While humans have the largest brains proportional to body weight of all animals, we don’t have the biggest brains. That distinction belongs to sperm whales with 17-pound brains.

Human brains have gotten significantly smaller over the past 10-20,000 years. The lost volume is equivalent to the size of a tennis ball.

The hippocampus, the part of the brain considered the “memory center,” is significantly larger in London cab drivers. This is due to the mental workout they get while navigating the 25,000 streets of London.

Chronic stress and depression are rampant in modern life. Either can cause measurable brain shrinkage.