The Explainer: Crowded streets can lead to dangerous sidewalks

Q. Dear Explainer, You got some ‘splainin’ to do: “Study Finds Higher Number of Pedestrians Hurt by Bikes.” – Charles Jacobs A. Dear Charles, I read that one, too. I am not sure that I have a lot of ’splainin to do on that one, but I do have some thoughts on the subject. To […]

The Explainer: Why clenbuterol?

A reader wants to know why an unethical athlete would look to clenbuterol for performance-enhancement.