Smoking is 25% more likely to give women heart disease than men, study published in the Lancet has found. Toxic chemicals in tobacco smoke may have a more potent effect on women due to biological differences, scientists believe. A meta-analysis pooling data from around 4 million individuals in 86 studies found that the increased risk of heart disease linked to smoking was 25% higher for women after adjusting for other risk factors. The longer a woman smoked, the greater her heart disease risk was, compared with that of a man who had smoked for the same length of time. A woman’s extra risk increased by 2% for every additional year she had been smoking. Click here to read more.