After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
You can only remember 4 things at a time.
31
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13
On average, there's 100 billion neurons in the human brain.
83
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Starfish don't have brains.
132