My cold has returned

A week ago I came down with a cold due to not getting enough sleep.  However, on Monday the cold was almost gone, and I ran that day and also on Wednesday. I was surprised when my cold returned on Friday, and I skipped my Saturday run to give my body more rest. As I get older, I'm finding that my takes more time to heal from a cold than it used to take. If we run with a cold, our bodies have to have enough energy to propel us down the path and to overcome the cold. Thus, the cold represents additional stress on our bodies. My cold was almost gone on Sunday.