Very high iron foods will increase blood cell count
Bend your wrist, pointing your hand toward the floor. With your other hand, gently bend your wrist farther until you feel a mild to moderate stretch in your forearm. Hold for at least 15 to 30 seconds. Repeat 2 to 4 times.
Lifting things that are too heavy... pushing too hard. Flexing out, and I think doing this specific workout for your stomach too much.