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吸烟对人体健康有很大危害,吸烟能引起肺癌已是众所周知,然而你知道吗?吸烟还会伤害你的胃。 烟中含有尼古丁,尼古丁能刺激胃黏膜,引起黏膜下血管收缩和痉挛,导致胃黏膜缺血、缺氧,从而起到破坏胃黏膜的作用。尼古丁还使幽门括约肌松弛,胃运动功能失调,使胆汁及十二指肠液返流入胃。由于胆汁中的胆酸对胃黏膜有很大的损害作用,会引起胃黏膜糜烂和出血。所以,长期吸烟的人,容易发生糜烂性胃炎、萎缩性胃炎和溃疡病。 同时,吸烟会增加胃的蠕动,促进胃酸分泌,胃内胃酸含量的增
Smoking is very harmful to human health. It is known that smoking can cause lung cancer. However, do you know that smoking can harm your stomach? Nicotine contains nicotine, nicotine can stimulate the gastric mucosa, causing submucosal vasoconstriction and spasm, leading to gastric mucosal ischemia, hypoxia, which play a role in damaging the gastric mucosa. Nicotine also pylorus sphincter relaxation, gastric motility disorders, the bile and duodenal fluid reflux into the stomach. As bile in the gastric mucosa bile acid have a great damaging effect, can cause gastric mucosal erosion and bleeding. Therefore, long-term smokers, prone to erosive gastritis, atrophic gastritis and ulcer disease. At the same time, smoking will increase gastric motility, promote gastric acid secretion, gastric acid content increased