Answer:
I'm blue, but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt, but I'm good for you. What am I?
Though I am only two words I have thousands of letters in me
I can run but not walk. Wherever I go thought follows close behind.
Walk on the living, they donβt even mumble. Walk on the dead, they mutter and grumble. What are they?
I start in little but I end in full you'll find me in half and complete.
When someone uses this acronym, you know you've got to pick up the pace