1. You are 99.999999999% empty

The volume of the nuclei of an atom is about fifteen orders of magnitude smaller than the size of the atom. (source)

2. You are a container for bacteria

There are 10 times more bacterial cells in your body than human cells. (source)

3. You have never actually “touched” anything

On an atomic level, atoms basically never touch each other. (source)

4. You are full of  “useless” body parts

Many parts of our body are merely remnants of our progenitors, but are now completely useless. These include: the appendix, wisdom teeth, third eyelid, body hair, tonsils, coccyx, male nipples, etc. (source)

 

5. You are constantly dying…and living

Every day 10 to 50,000,000,000,000 cells die and are replaced. (source)