Yes, the phrase is true. Here's a more detailed breakdown: Increased Blood Pressure: Research indicates that vaping can lead to a significant increase in blood pressure, particularly diastolic pressure, which can increase the risk of heart disease and stroke. Nicotine, a key ingredient in e-liquids, is a known vasoconstrictor, meaning it narrows blood vessels and can raise blood pressure. Lung Disease: Vaping exposes the lungs to a variety of harmful chemicals, including acetaldehyde, acrolein, and formaldehyde, which can cause lung damage and lead to various lung diseases. Studies have linked vaping to acute lung injury, COPD, asthma, and potentially even lung cancer, according to the American Lung Association. Insulin Resistance: Nicotine can impair the body's ability to use insulin effectively, leading to insulin resistance. This can increase the risk of developing type 2 diabetes and metabolic syndrome. Additionally, vaping can also lead to increased triglyceride levels, which further contributes to insulin resistance.