Abstract Neuropeptide Ys (NPYs) contribute to sympathetic‐adreno stimulation: NPY1‐36 potentiates the effects of catecholamines (CATs). whereas NPY3‐36 inhibits CAT release. We sought to investigate whether inhibiting dipeptidyl‐peptidase‐4 (DPP4). cleaving NPY1‐36 into NPY3‐36. https://stilleners.shop/product-category/engine-cold-air-intake/