Answer:
I am all around you but you cannot see me. I have no throat but you can hear me. Valued during summer but despised in the winter.
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?
I am a million people's wakeup call, gossip party and adrenaline rush. What am I?
I stand in one place yet I fill a whole room. I can be filled with molten rock and come in every hue.
The more you have me the less you see. Shine a light on me and I shall flee.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?