【正文】
psychological adverse reactions, such as nervousness, irritability, anxiety, tremor and muscle twitching ,Insomnia and palpitations. ? In addition, because caffeine can make gastric acid increased, the continued high dose intake can lead to chronic peptic ulcer, erosive esophageal inflammation and gastroesophageal reflux disease. However, because whether normal coffee or decaffeinated coffee, can stimulate the gastric mucosa, increase the gastric acid secretion, so caffeine may not coffee only ingredients. Thank you