Tom Brady could far outearn every NFL player in endorsement money, but he chooses not to.
The average person puts on around six to eight pounds when they quit smoking. Some people may put on more-even up to 30 pounds. Most people return to their normal (pre-quitting) weight after just one year. But, you would have to gain almost 100 pounds to put the same pressure on your heart that smoking causes.
For tobacco users trying to stop smoking, nicotine withdrawal symptoms are unpleasant and stressful - but they are temporary. Most withdrawal symptoms peak 48 hours after you stop smoking and are completely gone in 6 months. After that, you may find yourself eating more.