Ever wondered when you’re actually spreading the most germs with a cold? Dr Amir Khan spills the tea: you’re at your most contagious two to three days before you even feel sick! So that “I’m fine, I can power through” attitude? It’s actually the worst time to be around others. If you can, stay home at the first sign of symptoms. Can’t avoid going out? Crack a window, grab a HEPA air filter, and keep that hand sanitizer close! #Health #BodyHealth #healthtips