Answer:
Tall, I am young. Old, I am short. With life I glow. Anemoi is my foe.
A king wears one on his head.
If you suffer from this, you might wear a wig
The negative hero in each story
Without what would everyone lose their head?
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.