The phrase "to block the artery" means that something is preventing blood from flowing through a blood vessel, which can be dangerous and may cause health problems. Full definition
The achievement could open the way to a genetic treatment against the growth of smooth muscle tissue that can block arteries in heart patients, and ultimately to other targeted gene therapies. (sciencemag.org)
It can also lower blood pressure, clear blocked arteries, and improve our immune system. (medicaldaily.com)
One study looked at a 270 - day course of vitamin K2 given to patients for treatment for blocked arteries. (drstevenlin.com)