Technology
Epinephrine injections instantly constrict vessels
HERE’S THE INTERESTING PART
During a severe allergic reaction, your blood pressure plummets to fatal levels. An auto-injector stabs a massive, synthetic dose of pure adrenaline straight into your thigh muscle. It violently forces your blood vessels to constrict and rapidly relaxes the smooth muscles in your lungs, completely overriding your immune system's tantrum through sheer chemical panic.
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