 Hi, I'm Dr. Matt Hanley. I'm here with Timothy. We want to make sure that you're safe with whatever activity has you out and about this season. One important thing if you're skating or riding is to make sure you have a helmet and it fits correctly. Let me show you. The first thing you do is you make sure that it's level front to back. You don't want more than two finger breaths between the eyebrows and the front of the helmet. We've got to protect that brain. Next thing you do is push on the back and make sure that you don't get any gapping or significant gapping in the back. If it does, you tighten that strap. Then you grab the sides and you move the helmet side to side. See how Timothy's head moves? The helmet moves with him. That's just what you want. Okay, Timothy's going to open his mouth to show that the helmet moves down just a little bit showing it's tight enough. If it doesn't move down, you need to tighten that strap up a little bit more. From everyone at Kaiser Permanente, stay active, stay healthy, and stay safe.