NeuroScience

Over half the neurons in your brain only have four inputs.
Brain information travels up to an impressive 268 miles per hour (431 kilometres per hour).
Your brain isnt fully formed until age 25.
Elephants have the largest brains of all terrestrial mammals.
Adult zebrafish can regenerate their spinal cord.
The typical brain comprises about 2% of the body´s total weight, but uses 20% of its total energy and oxygen intake.
Neuroscientists can read a rat´s imagination.
Your brain generates about 12-25 watts of electricity. This is enough to power a low wattage LED light bulb.
There are 86 billion neurons in the brain.
There are more than 125 trillion synapses just in the cerebral cortex alone.
Being dehydrated by just 2% impairs performance in tasks that require attention, psychomotor, and immediate memory skills, as well as assessment of the subjective sta
As little as five minutes without oxygen can cause some brain cells to die, leading to severe brain damage.
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.
The sperm whale has the biggest brain of any animal species, weighing up to 20 pounds (7 to 9 kilograms).
A piece of brain tissue the size of a grain of sand contains 100,000 neurons.
The spinal cord is the highway for communication between the body and the brain.
As little as five minutes without oxygen can lead to severe brain damage.
Every minute, 750-1000 milliliters of blood flows through the brain.
Neanderthal brains were 10% larger than our Homo sapiens brains.
Albert Einstein s brain weighed 2.71 pounds (1,230 grams) – 10% smaller than the average of 3 pounds (1,360 grams). However, the neuron density of his brain was greater than average.
There are three types of neurons based on their function- interneurons, sensory and motor neurons.
The outer region of the hemispheres, the cerebral cortex, is the grey matter formed by the cortical layers of neurons.
The cerebellum plays an important role in motor control.
More than 100,000 chemical reactions take place in the brain every second.
Working with mice, researchers in 2016 at Johns Hopkins University have contributed significant new evidence to suport the idea that high doses of cocaine kill brain cells.
Celebral spinal fluid flows in and around the hollow spaces of the brain and spinal cord.
There is a great deal of neural conversation between the gut and the brain. After all, if the gut is not well fed, it could be a matter of life and death; the brain needs to be informed when energy i s low so that it can call other systems into action.
Each neuron is capable transmitting as many as 1,000 nerve impulses a second.
The average human brain size have decreased over 10% in the past 10,000-20,000 years.
In 1931 Theodore Erismann experimented with goggles which flips vision. At first person struggles with the flipped perception, but after just few days the brain will adapt to it.
People with Synesthesia often experience strange sensory mixtures such as seeing music as colours.
Even when we re sleeping, our brain is always active. It has to be to keep us alive.
The reason you cant tickle yourself is that when you move a part of your own body, a part of your brain monitors the movement and anticipates the sensations that it will cause.
The brain itself cant feel pain.
Estimates vary for an adults number of synapses range from 10^14 to 5 x 10^14 (100 to 500 trillion).
If you laid out all of the blood vessels in your brain end-to-end, they would stretch halfway to the moon (about 120,000 miles).
The human brain is nearly 60 percent fat.
Our brains continue to produce new neurons throughout our lifespan. This process is called neurogenesis.
Neurons have special branches on one end called dendrites and axons on the other. The dendrites receive information, while the axon on the other end sends the information to the next neuron.
Your brain has the capacity to change throughout your lifetime due to a property known as neuroplasticity.
Human brain tissue is very fragile – soft and squishy similar to the consistency of soft tofu.
There are three major parts of the brain: the cerebrum, cerebellum, and brain stem.
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
The pain you feel during a headache comes from chemical activity in your brain, the nerves or blood vessels surrounding your skull, or the muscles of your head and neck.
It is normal for your mind to wander. It was found, that the parts of the brain that control task-unrelated thought (such as daydreaming) are almost always active when the brain is at rest.
There are 400 miles of blood vessels in the brain.
The largest part of the brain is cerebrum, which makes up to 3/4 of the brain.
The basal ganglia are associated with a variety of functions, including control of voluntary motor movements, procedural learning, habit learning, conditional learning, eye movements, cognition, and emotion.
In Alzheimer s disease, the hippocampus is one of the first regions of the brain to suffer damage; short-term memory loss nad disorientation are included among the early symptoms.
Population of neurons can be interconnected by synapses to carry out a specific function when activated.
Most glia are derived from ectodermal tissue of the developing embryo, in particular the neural tube and crest.
Spinal cord is made up of nervous tissue and extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column.
Functional imaging enables the processing of information by centers in the brain to be visualized directly.
Some neurons emit action potentials constantly, at rates of 10-100 per second, usually in irregular patterns.
The main function of the Peripheral Nervous System is to connect he Central Nervous System to the limbs and organs, essentially serving as a relay between the brain and spinal cord and the rest of the body.
There are two fundamentally different types of synapses: electrical and chemical.
The largest structure within the basal ganglia, the striatum, is seen as having its own internal microcircuitry.
Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago.
Nerve net consists of interconnected neurons lacking a brain or any form of cephalization.
Spinal nerves are mixed nerves that serve both functions.
A cell that receives a synaptic signal from a neuron may be excited, inhibited, or otherwise modulated.