Daisy wanted to know more about her epilepsy, so she decided to become a detective.
The left hemisphere (side) of your brain controls the right side of your body, and the right hemisphere controls the left hand side.
In most people, messages from the left hemisphere override messages from the right, so most people (about 9 out of 10) are right handed. Nobody is really sure why this is.
There are so many connections between all the cells in your brain that if you started counting them now, one every second, you would finish in 32 million years time.