From the tens of thousands of miles of blood vessels in your body to how far your nose can launch a sneeze, we’ve got weird body facts you’ll love to chat about with friends. Who knew?

You get a lot of heartbeats

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The average human gets around three billion heartbeats in their lifetime. That’s all the more reason to care for your ticker. Plant-based diets filled with veggies, sipping tea, and practicing yoga are among some of the 15 smart ways to prevent heart disease.

Your skeleton is all wet

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You probably already heard that the human body is made up of mostly water (55 to 60 percent for adult women and men, respectively). What you might be surprised to find out is that fluid isn’t just in your skin, muscles, and organs, but your skeleton, too. In fact, water makes up nearly one-third of your bone mass.

You’re part bacteria

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If you claim to be afraid of bacteria, better think again. A 2016 study found that a 154-pound man has about 38 trillion bacteria, which is roughly the same amount of human cells, the researchers say. What’s more, the bacteria weigh nearly a half-pound in total.