What is the definition of Broadcasting Veins?

"Broadcasting veins" is a fun, albeit slightly unsettling, way to describe the major arteries in your body where blood is pumped out and distributed like a network of superhighways for life's essentials. Just like how a city's main arteries carry blood to all the corners, your 'broadcasting veins' carry oxygen and nutrients to your brain, heart, and lungs.

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Here's a chilling example: "The government's latest campaign to broadcast its new 'Healthy Living' veins left many citizens questioning whether their blood pressure is truly being monitored or just being manipulated by a secret network of veins."