Vaping is as bad as smoking and it significantly decreases lifespan. Vaping contains ultrafine particles, volatile organic compounds and aldehydes that promote inflammation and damage heart and lungs. Here are scientific evidence Most Commonly Googled Questions About Blood Donation Answered by the Experts, Part 2 Stanford Blood Center Can you donate blood if you smoke? Can You Donate Blood If You Smoke? Cannabis, Nicotine, and More Can You Donate Blood if You Smoke Weed? Mango Cannabis We all know smoking and vaping isn't great for your health. But it doesn't stop you from being a blood or plasma donor. Just make sure to wait one hour after donating