The longer it is after your last cigarette, the more your lungs will clear the tar and nastiness out, making breathing easier for you as you work out, and allowing the oxygen to flow easily around your body without hindrance from any carbon monoxide
Morain SR, Garson A, and Raphael JL
Retrieved 24 November 2019
Within seconds of taking a puff, nicotine from the tobacco reaches your brain and increases the release of certain brain chemicals that regulate your mood and behaviour
I have also seen that whitetails can be greatly alarmed by hunters emitting strong odors made by hotcakes, sausages, pizza, fried onions, garlic, cooking meats, BBQ, tobacco smoke, tavern odors, gasoline or body odor