what are the body's physical and psychological responses to a lack of nicotine called
Nicotine withdrawal Nicotine withdrawal is a group of symptoms that occur in the first few weeks upon the abrupt discontinuation or decrease in intake of nicotine. Symptoms include cravings for nicotine, anger/irritability, anxiety, depression, impatience, trouble sleeping, restlessness, hunger or weight gain, and difficulty concentrating.[1] A smoking cessation program may improve oneâ€™s chance for success in quitting nicotine.[1] Nicotine withdrawal is recognized in both the American Psychiatric Association Diagnostic and Statistical Manual and the WHO International Classification of Diseases.