Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy — your immune system. The immune system’s responses begin with physical barriers like skin and mucous membranes, and when…

Metabolism is a complex process that has a lot more going on than personal trainers and commercials might have you believe. Today we are exploring some of its key parts, including vital nutrients — such as water, vitamins, minerals, carbs,…