<span>Heart failure is risk that someone is taking stimulants in his or her body. Stimulants are chemicals that can add to your alertness and too much of it can damage your nervous system. When your nervous system will react to the high level of stimulants, you will get nervous that will cause for your heart to pump more blood. When your hear pumps more blood than the oxygen intake in the lungs, it will cause a hear attack or hear failure.</span>
Instead of using animals in medical expereince, i think<< that scientests could test it on bacteria or humans, if it is safe enough.
Applying direct pressure technique if applying directly on the wound, or a "pressure point", if pressing a point of the artery above that limits bleeding.
