Answer:
Take one out and scratch my head, I am now black but once was red.
I can ruin your day, or darken your life. And while I'm expected, I'm never alright. I'm bad for business, and worse for your hair. Wherever I am, there's something not there.
Who spends the day at the window, goes to the table for meals. And hides at night?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?
What is the thing that stays the same size, but the more it's used the more it decreases?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?