Newer versions of e-cigarettes known as vape pens may not look much like traditional cigarettes, but seeing someone use these devices still sparks a desire to smoke, a recent study suggests.
Like other types of e-cigarettes, vaporizers, or vape pens, are battery-powered gadgets with a heating element that turns liquid nicotine and flavorings into a cloud of vapor that users inhale. Vape pens are larger, produce bigger clouds of vapor and look less like traditional cigarettes than other e-cigarettes.
