We're back with more medical questions from kids.

From why it's sometimes hard to fall asleep to why mosquito bites itch. Also who has the best stickers Dr Preeya or her husband Dr Will?

Dr Preeya has all of the easy to understand answers for these very clever questions. 

Joining Preeya to ask the questions (and give one or two answers) is her daughter "Stevie".

This is a great episode for the school holidays, a long drive or just passing the time at home.