San Francisco has voted to ban the sale of electronic cigarettes, nicotine devices that have become extremely popular among teenagers. The move comes as a surprise as the city is home to Juul, the world’s largest manufacturer of the e-cigs. However growing fears of addiction among youth and the lack of research on the impact on our health has led to authorities taking a better-safe-than-sorry stance on the cigarette alternative. Once hailed as a healthy alternative to actual smoking, the use of e-cigarettes has been frowned upon. But how did our hopes to beat smoking fall so far from grace? E-cigarettes, or vapes, are little portable devices that heat liquid into aerosols for people to inhale. These liquids are loaded in cartridges that can be purchased from various suppliers. They also come in various flavours and packaged in all sorts of appealing designs. One truth is that e-cigarettes are less harmful than cigarettes themselves. Vapes heat nicotine that is extracted from tobacco that combine with other chemicals in water vapour that you inhale. Regular tobacco cigarettes have over 7,000 toxic chemicals that expose smokers to far more toxic content than traditional cigarettes...