Nicotine in vapes is highly addictive and can negatively impact a teen's developing brain, affecting memory, focus, and mood. Even short term use can cause headaches, nausea, sleep problems, and increased heart rate. WorkLife Fact Sheet: Vaping (Electronic cigarettes) Connections Vaping awareness poster The City of Fargo Spot the Signs for Parents Upset Stomach & Nausea It might surprise you, but what you put in your lungs can definitely affect your gut! Nicotine is a stimulant that can speed up your digestive