How to play:  On the YouTube video, simply click thumbs up for true and thumbs down for false.  Check the interactions below the videos to see what your friends think!

Immune True and False Quiz game on YouTube:  Video link

In the comments below the video, tell me why you think your answer is correct.  Give supporting evidence.

By Darrell Barnes © 2019

Links and Bibliography:

The immune system and happiness.  A article