The human nose can detect over 1 trillion different scents, making it one of the most powerful senses.
The small intestine, despite its name, is actually longer than the large intestine, measuring up to 23 feet in length.
Humans shed and regrow their skin every 27 days, on average.
The average human will produce enough saliva in their lifetime to fill two swimming pools.
The human brain can hold up to 1 million gigabytes of information, which is roughly equivalent to 3 million hours of TV shows.
The surface area of a human lung is approximately equal to the size of a tennis court.
The strongest muscle in the human body is the masseter, the muscle responsible for jaw movement and chewing.
Humans are born with 300 bones, but by adulthood, this number decreases to 206 as some bones fuse together.
The acid in a human stomach is strong enough to dissolve a razor blade.
Humans are the only animals with chins, which evolved as a result of changes in our facial structure over time.