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The Dangerous Duo: Caffeine and Nicotine Do Cigarettes Make You Poop? Research, Digestive Effects & More Did you know nicotine can disrupt your sleep even more than caffeine? Nicotine is a powerful stimulant that increases alertness, raises your heart rate, and interferes with the deep, restorative sleep caffeine cigarettes does cigarettes have caffeine Common used Chemicals in cigarettes But we still smoke Solved As a student, I have got so much to do and not enough Neurosciences and Cigarettes: are you addicted to the sugar or to the nicotine inside?
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