1741. If you ask someone a question and they only partially answer you, stay silent, the person will keep talking.

1742. If you don't move for 15 minutes, you'll end up falling asleep.

1743. To fall asleep, blink your eyes quickly and leave them open in the dark, you will eventually fall asleep.

1744. Albert Einstein’s brain weighed 2.71 pounds (1,230 grams) — 10% smaller than the average of 3 pounds (1,400 grams).

1745. However, the neuron density of his brain was greater than average

1746. Neanderthal brains were 10% larger than our Homo sapiens brains.

1747. While humans have the largest brains proportional to body weight of all animals, we don’t have the biggest brains.

1748. Human brains have gotten significantly smaller over the past 10-20,000 years.

1749. The lost volume is equivalent to the size of a tennis ball.

1750. The hippocampus, the part of the brain considered the “memory center,” is significantly larger in London cab drivers.