The human brain consists of 60% white matter and 40% grey matter. But what is grey matter? And why do we call this lovely newsletter by that name?
Grey matter includes regions of the brain involved in muscle control and sensory perception. It is also vital to our intelligence and memory. We at Brainfiller have a primary goal to fill all brains with as much knowledge as possible. Your grey matter will help you to remember it. Thus our reason for calling this newsletter, “Grey Matter.”
Allow us to fill your brain with these fun facts about your brain:
- Your brain produces enough energy to power a light bulb. Your brain can produce enough energy to power a 25-watt light bulb, even while sleeping.
- Brains are busier when you’re sleeping. We’re always told to get a good night’s sleep before a big test. This is why! Brains spend your sleeping hours organizing and storing information you come across throughout the day, including all of that information you just studied for a big test. Your brain is so busy when you’re sleeping that it has to produce a hormone that keeps you immobilized so you won’t react to any of the ideas that are going through your head.
- Grey matter isn’t actually grey. Don’t let the name fool you. Grey matter doesn’t turn grey until it dies. It is actually a healthy pink due to all the blood that’s constantly flowing through it.
- Humans use much more than 10% of their brains. We aren’t sure where this information about only using 10% came from, but we do know that it’s not true! Although you may not be using every part of your brain at every moment of the day, you will use every part at some point during the day. Each part of our brain has a different purpose, but they’re all essential to function.
- Your brain doesn’t feel pain. Even though our brain will tell us loud and clear when we’re in pain, the brain tissue itself doesn’t contain pain receptors and thus cannot feel pain.
- Your brain is addicted to oxygen. Our brain makes up less than 2% of our body weight, and yet it consumes 20% of the oxygen in your bloodstream. The brain divides that oxygen up between grey and white matter, with white matter getting just 6% and gray matter taking in 94%.
- Your brain is mostly water. The average brain is about 73% water. Much of that water comes from blood. About a gallon of it flows through every four minutes.
- A fat brain is a healthy brain. The brain is the most fatty organ in the body and you want it to be! The fat is necessary to insulate neurons and allow messages to travel through the brain and the body without getting lost.
Have a brainy day!