The habit endured for centuries, despite motley maladies it had caused, even despite the mounting casualties it had heaped and continues to heap to this day.  It took a Chinese pharmacist, Hon Lik whose father felled victim to cancer from smoking, to reconfigure the habit murderous to human health. He invented vaping for smokers to kick the habit, yet, still enjoy smoking.

Read more here: http://medicalobserverph.com/adulthealth-vaping-helps-smokers-kick-the-habit