There are gas masks some professional runners wear when doing long distance runs. The masks are designed to reduce the amount of oxygen you receive so when you're running its harder.

I need to get in better health. My blood pressure is running amuck and I eat like I'm trying to commit suicide. 2016 is the year when I started making food instead of bying it ready made. I'm not fat at all, but I live like I have a death wish. Trying it turn things around, but it's a challenge.