On average, there's 300 billion neurons in the octopus brain.
129
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
The average person's skin weighs twice as much as their brain.
131
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39