With Covid-19 still looming heavily over the U.S., Americans are looking for ways to boost their immune system before winter hits. But it’s not as simple as targeting one specific entity in your body. The immune system is the body’s natural defense system, made up of a network of molecules, tissues, cells, and organs working together as a whole. So, to function well, it requires a balancing act between a healthy diet and lifestyle. Here are six ways to supercharge your immune system before winter. Fuel your body with the right foods If you want to give yourself a…