The average adult human brain weighs three pounds and has a hard jelly-like texture.
Every time your heart beats, your arteries carry 20 to 25 percent of your blood to the brain.
Every time you recall a memory or have a new thought, you create an association in the brain.
There are 100 billion neurons (nerve cells) in the brain, but they make up only 10 percent of the brain. These neurons branch out to more than 100 trillion trigger points, which experts call neuron forests.
Size does not matter in the brain. There is no evidence that a big brain is smarter than a small brain.
There are 100,000 miles of blood vessels in the brain. The distance around the world at the equator is 24,900 miles.
Did you know that it’s normal for your mind to wander? One study found that the parts of the brain that control task-unrelated thoughts (such as daydreaming) are almost always active when the brain is at rest.
According to one study, adults who participated in activities that challenged the brain were 63 percent less likely to develop dementia.
Research has shown that women who are highly physically fit are 90 percent less likely to develop dementia than women who are less physically fit than them.
The harder you think, the more oxygen and fuel your brain will use from your blood, up to 50 percent.