Tobacco smoking has been a fashionable practice since the ages of our forefathers. This is seen from the pictures of the ancient scientists and royalties holding their tobacco pipes. However, tobacco smoke has been associated with serious health risks. These risks include lung cancer, coronary heart diseases and bronchitis. 

There are additional medical conditions that are associated with tobacco smoke. The need to keep the lifestyle alive has led to a veritable scientific discovery. In the year 1963, a scientist known as Herbert A. Gill posted an idea that targeted the creation of a device that could comfortably substitute tobacco cigars. However, this idea could not be implemented at the time owing to the poor technological infrastructure of those days.
 
In 2003, Herbert's idea was realized by a Chinese Pharmacist. Hon Lik invented the electronic cigarette. This device was quickly embraced by the universal society. However, there were questions raised about the effects of the cigar on humankinda short while later. These questions led to controversies across the globe. Some organizations revoked their initial stands on the issue. Governments too banned the supply and dealing of the electronic cigarette.
 
However, the claims offered by these organizations were rather baseless. Further researches were carried out to define the device clearly. It was then established that the electronic device is safe for humanity. 
 
The researches have proved that the device does not harbor the dangers that had been suggested. As a matter of fact, most of the governments who had banned the device have lifted the bans. Similarly, most of the opposing health organizations have embraced the device.
 
The electronic cigarette is an electronic device built from four basic components. The four constituting components of the e-cigar are the light cover, the batteries, the atomizer and the cartridge. The batteries are usually made of lithium ion and are thus rechargeable. The device uses USB adapters to recharge the battery.
 
 The battery is connected to the atomizer. The atomizer is the component that vaporizes the organic compound in the cartridge. This provides the vapor that is inhaled. On the other hand, the cartridge is the upper part of the cigar. It is used as the mouth piece. It stores propylene glycol in its liquid form.
 
These parts are arranged such that they take the form of a common cigar. The vapor that is inhaled has been designed to cause sensations similar to those of tobacco smoke. These sensations are limited to the positive effects of the smoke. Propylene glycol vapor has been tested for carcinogenic effects found with tobacco smoke. The results show that the propylene vapor is far much safer to inhale. 
 
Basing on the researches that have been carried out, electronic cigarettes can be recommended to be auxiliary therapy for tobacco smokers. Conventionally, electronic cigarettes should be preferred over tobacco cigars since they have few effects on health.
 
Needless to say, electronic cigarettes are environmentally friendly. They do not produce smoke that pollutes the air. The vapors produced are bio degradable and lack the harmful ingredients present in tobacco smoke.