City life and its modern trappings have brought bad habits to developing African nations that will see more die of chronic illness than infectious diseases by 2030, a study shows.<br/><br/> A World Health Organization survey of 33 countries has shown that most adults in Africa have at least one risk factor increasing their chance of developing deadly lifestyle diseases such as heart disease, cancer and diabetes. <br/><br/>These include smoking, harmful use of alcohol, a poor diet and low levels of physical activity.<br/><br/>Most people were not eating enough fruits and vegetables, and a rise of junk food and unhealthy diets mean that paradoxically, sub-Saharan Africa suffers from the double burden of under nutrition and obesity.<br/>'''''