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Since many people are alone when they suffer a heart attack,
without help, the person whose heart is beating improperly and who
begins to feel faint, has only about 10 seconds left before losing conscious.
However, these victims can help themselves by coughing repeatedly and very
vigorously. A deep breath should be taken before each cough, the cough must
be 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, or until the heart is felt to be beating normally again.
Deep breaths get 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. In this way, heart attack
victims can get to a hospital. Tell as many other people as possible about this.
It could save their lives.

Don't ever think that you are not prone to heart attack if your age is less than 25 or 30.

Nowadays due to the change in the life style, heart attack is found among people of all age groups.