Dr. Pamela Yee, MD is a functional medicine doctor who is board certified in internal medicine and holistic medicine. In practice, she takes time to fully understand her patients individually by diving deep to find the root cause of a particular problem. As we continue to battle Covid-19, Dr. Yee shares many ways in which we can all boost our immune system as cooler weather rolls around. In this conversation, she talks about the four foundations of the immune system: sleep, stress, exercise, and diet in addition to the supplements you should take.