How can apples and blueberries keep the doctor away and improve your health on multiple levels?How can apples and blueberries keep the doctor away and improve your health on multiple levels? Blueberries have lots of antioxidants, and apples have plenty of vitamin C to boost your immune system and keep you healthy. They work in ways you wouldn't believe. Host Michael Schwartz and guest Susan Smith Jones, PhD, also discuss the symbology of the apple.