Weather changes, and so does your skin. Changes in temperature, humidity and sun exposure can do a number on your skin or make skin conditions worse. Whether you're trekking to work in wintery weather or enjoying a sunny day outside, your skin — the largest organ in your body — bears the brunt of your exposure to the outside world. Test your knowledge on how to protect your skin from the elements.
How much do you know about how car engines work? And how much do you know about how the English language works? And what about how guns work? How much do you know? Lucky for you, HowStuffWorks is about more than providing great answers about how the world works. We are also here to bring joy to your day with fun quizzes, compelling photography and fascinating listicles. Some of our content is about how stuff works. Some is about how much you know about how stuff works. And some is just for fun! Because, well, did you know that having fun is an important part of how your brain works? Well, it is! So keep reading!