During stress, your body releases hormones that trigger blood vessel constriction, redirecting flow to large muscle groups in preparation for physical action. When this stress response persists ...

blood vessel constriction and increased pulse rate. Three-dimensional structures of GPCRs are difficult to obtain because hydrophobic surfaces in the transmembrane (TM) domains and GPCR ...

Pulmonary artery denervation (PADN) may help lower high blood pressure in pulmonary hypertension, a meta-analysis of studies ...

including blood vessel constriction in the heart and brain. In 2006 mouse study published in the Journal of Neurochemistry, the researchers described injecting butylidenephthalide into the brains ...

The heart works harder to maintain body temperature, while the weather activates the sympathetic nervous system, leading to ...