Allergies and Asthma Are Linked to Heart Disease, According to New Study

We can’t really show causality, but science does show it’s connected to pro-inflammatory mediators, things that trigger inflammation in the body, Dr. Raj Dasgupta, University of Southern California, via CNN. Those narrow the blood vessels in the nose and the rest of the body, which can lead to high blood pressure and an increased heart rate, Dr. Raj Dasgupta, University of Southern California, via CNN. Steroids increase blood pressure; they increase blood sugar. Dr. Raj Dasgupta, University of Southern California, via CNN.