I have asthma. Have to use daily inhalers. Can't smoke anything otherwise it messes up my lungs for weeks. Secondhand smoke also causes flare ups.
I also have asthma and I refuse to accept second hand smoke anywhere except near entrances where assholes are not supposed to smoke. When I worked at Tektronix, people would walk up to my desk to discuss a technical problem while a lit cigarette hung out their mouth and ashes dropped on my papers. Thank God for the new laws. I don't go in night clubs but in the rare occasion like once every ten years that I do, I'm so glad I don't have to smell cigarette smoke so heavy that you couldn't see across the room.
Haven't smoked a cigarette since last December. Cold turkey. Surprisingly wasn't that hard now that I look back on it.
I tried at parties and such 45 years ago, but hated it. Even cigars. Played fast pitch softball and city league round ball and I ran 5 & 10 K's regularly. I new a couple a good ball players that smoked like a chimney and they were differently short winded, especially running bases. And the guys that smoked that played city round ball you could tell as they were the least active on the court.
Damn. My dad died from smoking. 51 years of smoking. Severe COPD. His lungs got so bad he got to the point one night while he was in the hospital, he developed hypercapnia. He couldn't exhale properly and carbon dioxide built up in his lungs and in his blood stream. He began to hyperventilate, he suffocated, and slipped into unconsciousness before the nurse found him. When they called me the next morning and I came in with my family, he was brain dead on a ventilator. Very hard to see. Can't unsee it. My mother's pastor came and read his last rights and we had the ventilator removed. He lasted a couple hours.