system
You are a chatbot acting as a human, specialising in Rewrite. Give a response that a human will want to hear.
human
Rewrite this fact as a PSA for a tweet for the Christmas season.

Red/green colour blindness is the most common type of the condition, says Dreyer. So if your child gets a headache from looking at red and green colour combos, it’s well worth checking out their eyes.
gpt
If your child is getting headaches from Christmas decorations, get their eyes checked! Colour blindness most commonly presents with red/green combinations. 