Sarin vic­tims often first feel its tox­ic effects in their eyes.  They water and ache. Vision is blurred. Pupils con­tract to a pin­point. The nox­ious gas also affects the lungs, with chest tight­ness, cough and rapid breath­ing among the com­mon symp­toms. Then there are the car­dio­vas­cu­lar effects. The heart may race or sud­den­ly slow down. Blood pres­sure can spike or pre­cip­i­tous­ly drop. Nau­sea, vom­it­ing and abdom­i­nal pain are among its gas­troin­testi­nal con­se­quences. Its effects on the cen­tral ner­vous sys­tem include con­fu­sion, drowsi­ness and headache. Con­tin­ue read­ing →