Giving up smoking is crucial for your overall health, and it’s the number one cause of cancer in the UK. But what’s the best way to give up smoking? ITV This Morning’s Dr Chris Steele suggests using nicotine replacement therapy. An addiction to cigarettes is caused by the addiction to nicotine, but smoking’s harmful effects come from the other chemicals involved. Satisfying your addiction to nicotine without those chemicals could help to boost your chances of success, he said.