Effects of smoking, thermogram

Effects of smoking, thermogram

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Credit: ROBERT MARKUS/SCIENCE PHOTO LIBRARY

Caption: Effects of smoking, thermogram. The colours show variations in temperature; from red (warmest) through yellow and green to blue (coldest). At left is a human hand before smoking tobacco, at right is the same hand after smoking tobacco. The nicotine in the tobacco affects the blood circulation, causing the smooth muscle found in blood vessels to contract. This leads to the fingers, becoming cooler.

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Keywords: adult, after, before, blood supply, circulation, circulatory system, constriction, contraction, cooler, cooling, drug effect, effect, effects, hand, hands, heat, human body, medical, medicine, nicotine, pharmacological, pharmacology, physiological, physiology, reduced, reduction, sequence, series, smoking, thermal camera, thermogram, thermograph, tobacco, vascular, vasoconstriction

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