1. Drink your lemons.
2. Give your body an herbal boost.
3. Get a full night's sleep.
4. Eat plenty of protein.
5. Drink plenty of water.
6. Stop drinking coffee.
7. If you do only one thing to boost your immune system, eliminating sugar will do the trick.
8. Stock up on raw fruits and vegetables for their antioxidants, vitamins, minerals, fiber and enzymes.
9. Spend some time out in the cold.
10. Nurture yourself.