You may not feel sick enough to stay in bed, but you wonder if you're too sick to go ahead with your usual work-out routine. All you know for sure is you aren't feeling great. Your throat is scratchy and your head is congested, so you aren't certain about what to do. That's when you can use your symptoms as a guide.
Symptoms Above the Neck
If you're suffering symptoms above the neck, such as those associated with a cold, a low-impact exercise like walking won't hurt you.