1. In general, men’s brains are 10% bigger than women’s, even after taking into account larger body size. However, the hippocampus, the part of the brain most strongly linked with memory, is typically larger in women.
2. Albert Einstein’s brain weighed 2.71 pounds (1,230 grams) — 10% smaller than the average of 3 pounds (1,400 grams). However, the neuron density of his brain was greater than average.
3. Neanderthal brains were 10% larger than our Homo sapiens brains.
4. While humans have the largest brains proportional to body weight of all animals, we don’t have the biggest brains. That distinction belongs to sperm whales with 17-pound brains.
5. Human brains have gotten significantly smaller over the past 10-20,000 years. The lost volume is equivalent to the size of a tennis ball.
6. 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.
7. chronic stress and depression are rampant in modern life. Either can cause measurable brain shrinkage.
8. The modern diet is low in omega-3 essential fatty acids. Low levels of omega-3s result in brain shrinkage equivalent to two years of structural brain aging.
9. Since the Victorian era,. Average IQs have gone down 1.6 points per decade for a total of 13.35 points.
10. Technology has forced most of us to be prodigious multitaskers. But your brain can’t learn or concentrate on two things at once. What it can do is quickly toggle back and forth between tasks. But doing so decreases your attention span, ability to learn, short-term memory, and overall mental performance.
11. Unexpectedly, millennials (aged 18 to 34) are more forgetful than baby boomers. They are more likely to forget what day it is or where they put their keys than their parents!
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