I was riding yesterday and came upon a group of riders off to the side of the road clustered around a man prone on his back. I stopped and learned that he collapsed, and it appears he was having a heart attack. One of the riders in the group was an EMT, and they had already called 911. So, I felt like there was nothing I could do, but asked to make sure. One man replied that none of them could do anything but wait until the ambulance got there. The EMT was busy attending to the guy. So, I pushed off and headed down the road. But as I moved away I kept wishing there was something I could do. By the time I got home I was preoccupied with three things. One, this guy was near my age. Two, it was hot and humid with the heat index at 105 degrees - not a great day to be pushing it. Three, I typically ride alone and wouldn't have anyone to call for help on my behalf. This morning, I awoke with my first thought being I hope he made it.