The Harvard Medical School recently released a new study showing that shorter men are more prone to heart attack than taller men. A man 1.7 metres or shorter has a 60% greater chance of having a heart attack than one at least 1.85 metres tall, the study said, Earlier studies found a similar correlation in women. Researchers concluded that shorter people have narrower arteries that are more vulnerable to clogging. But physicians emphasized that the main risks for heart attack still comes from things that people can control such as, smoking, high cholesterol and high blood pressure.
What is the main idea of this passage ?
There is a greater chance for shorter men to be affected by a heart attack than taller men.
There are more than 30% of taller men to have a heart attack.
There are fewer 40% of shorter men to be affected by high cholesterol.
There is a greater risk for taller women to have high cholesterol and high blood pressure than taller men.