5. Get some sleep
We know Christmas is all about having fun, eating and drinking, but you need to get some sleep too!
Your body and brain recharge when you're under the covers and also fight off infections. Try drinking a warm, milky drink before bed, and, if you've been up or out partying, make sure you give yourself time to wind down and switch off before jumping into bed.
- It's even more important than usual to eat a good breakfast at this time of the year