A recent US study has shown that that about 60 per cent of the protection that women gain against stroke and heart disease is derived from its effect on just a few particular risk factors.

The research, published in the journal Circulation, used data from 27,000 women who partook in the Women’s Health Study. With an average age of 55 years, the participants’ cardiovascular risk factors and exercise levels were monitored for 11 years.

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