On average, there's 300 billion neurons in the octopus brain.
129
Starfish don't have brains.
132
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8