Is Vaping Worse Than Smoking? St. Vincent's Medical Center Study: heated tobacco less harmful than cigarettes, but much more so than vapes Vaping Post Think vaping is a safer choice? Think again! Vaping may look harmless, but it's loaded with nicotine and toxic substances that can increase blood pressure and raise the risk of heart Don't be foolede cigs or vapes may be less harmful than cigarettes, but less harmful doesn't mean safe. Vapes can contain harmful substances including nicotine, heavy metals like lead, volatile organic compounds and