According to the Nurse's Health Study of the Harvard School of Public Health in Boston, heart disease in women can be prevented by doing regular exercise and concentrating on weight control.
The study was based on a survey of 90,000 women, who had their body mass index (BMI) taken regularly. They were also routinely questioned about their sporting activities, such as walking, cycling and swimming.
Women with a BMI between 18.5 and 24.9 had the lowest risk of a coronary heart disease, especially if they spent more than 3.5 hours a week exercising.
Drastically overweight women, who were not physically active had the highest risk of getting sick, said the study.