Cigarettes are addictive because of the nicotine in them. Nicotine is a HIGHLY addictive substance that can be found in tobacco. It causes stress relief to your brain and can elevate your heart rate. After your body has had even the slightest bit of nicotine it will feel like you need more. So basically nicotine is and the temporary feeling of stress being relieved gets you addicted.
Hope you stay well! Make sure to limit your contact with others and drink water. Sticking to your normal diet and adding additional fruits to it will help you feel better!!!
Relationships that are positive can affect your physical/emotional health. it can affect your physical health by giving you some type of feeling that would lead to your emotional feelings/emotions. i hope that i helped you.