Many people are alone when they suffer a heart attack.A person whose heart is beating improperly and who begins to feel faint has only about ten seconds left before losing consciousness.However the victims can help themselves by coughing vigorously and repeatedly.A deep breath should be taken before each cough,deep and prolonged as when producing sputum from deep inside the chest.A breath and a cough must be repeated about every two seconds without let up until help arrives. Deep breath gets oxygen into the lungs and coughing movements squeeze the heart and keep the blood circulating.The squeezing pressure on the heart also helps it regain normal rhythm.