Why would someone be having shortness of breathe

Which popular american sandwich is made by placing a beef patty inside a bun?is an american classic prepared by placing a fried or barbequed beef patty in a bun.

What kind of wound occurred when the skin scrapes against a hard surface and tiny blood vessels break in the outer layer of skin

1. controls how much sugar is in the blood pancreas 2. controls the other glands pituitary gland 3. manufactured by the brain to relieve pain thyroid 4. gland that regulates the body's energy levels endorphins