Doctors at Harvard have figured out the 10 best foods to instantly improve your mood.  It's because they trigger the right chemicals in your brain.  Check 'em out:

1.  Pumpkin seeds.

2.  Dark, leafy greens.

3.  Eggs.

4.  Carrots and celery.

5.  Salmon.

6.  Flaxseed.

7.  Whole grains, like oatmeal or brown rice.

8.  Red peppers, kiwi fruit, and other foods with high vitamin C.

9.  Tea.

10.  Dark chocolate.