Medical profession has always showed concern for ailing humanity, not only in form of providing cure to the sick but also in form of taking effective measures for prevention of disease and infirmity. Physicians have worked to improve nutrition of impoverished families and have supported various legislations that concern health of society; for example they have demanded steps for automobile safety measures, ban on advertisement of tobacco products, warning signals on alcohol, ban on sex determination tests with a gender bias, steps for promotion of healthy environment etc.