Just like humans need food, water, and oxygen to function properly – the body also needs light. Unfortunately today, because of the modern human condition, most people do not get as much natural light as they need to live a healthy life. Light pollution an increasing screen time, has altered our bodies on a cellular level. Healthy natural light stimulates the mitochondria. As you remember from high school biology class, each cell in your body has thousands of these little powerhouses. The mitochondria produce the energy that the cells use to function. As all the cells function together in your body – you have energy and are able to go about your day in a high-energy way.