Answer:
I am always around you but often forgotten. I am pure and clean most of the time, but occasionally rotten. What am I?
What has 13 hearts but no other organs?
I can be found after you remove 6 letters from BSAINXLEATNTEARS
I can be thin but not fat; in your body but never on your placemat. I'm always better when I'm fresh but you'll never see me in the flesh.
Never ahead, ever behind, yet flying swiftly past; for a child, I last forever; for an adult, I'm gone too fast. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.