The Harnessing Natural Sunlight for Health and Sustainability Project emphasizes the need of applying solar energy to our daily activities in order to reduce significantly the use of artificial energy. The main suggestions to implement it are: opening the curtains, turning off artificial lights, and working near windows. From a practical point of view, I think that cutting down artificial lights is such a transformational proposal that will create eco-friendly habits in individuals to help preserve the environment. Besides, it is an affordable idea that everyone can apply to their lifestyles. Summing up, thinking on replacing artificial lights for natural sunlight is such an impactful project for both individuals and ecosystems.