How long does your body need to rest between muscle training workouts?

What exercise allows you to specify the muscles to be traineda. i sonicb. anaerobicc. isometricd. aerobic

During the sixteenth, seventeenth, and eighteenth centuries, the mentally ill were housed in

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