- An astronaut can be up to 2 inches taller returning from space (the cartilage disks in the spine expand in the absence of gravity).
- 45% of people use mouthwash daily.
- When born a baby giraffe is 1.8m (6ft) tall.
- Hiccups usually lasts for 5 minutes.
- It takes 17 muscles to smile and 43 to frown.
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