I'm with crazyboat
no drugs including alcohol-which is also a drug
I lost my uncle to alcohol. Killed himself (pickled). Lost my best friend to alcohol, that man had so much to give and he cut his own life short with booze. Lost my great uncle, cirrhosis of the liver. Many of my friends drink like the fishes in the sea, and it affects so much of their lifes--consumes them if you will. One friend, gets paid on Friday, spends about 50% of his pay on booze and smokes on the way home from work every friday afternoon. My dad--smoked for years and quit when I was younger. He's 80 now, great health except the heart, docs say his heart condition can be contributed to the years of smoking. My mom smoked for as long as dad did, she has some issues with her brain that the doc said can be contributed to smoking. One reason I left the job I worked at for 28 1/2 years was because the "new boss" (and that's all he was, a boss) came in and said you guys can smoke in the shop, not in the main building though. I don't, and won't put up with secondhand either, so when I found and out I took advantage immediately. Those that choose to pollute their body don't really think much about others around them.
On that note, my grandmother. Sweetest woman I have ever known, and really smart. She got lung cancer when I was 12 and died when I was 17. I was with her those last few years. I watched her suffer through the chemo treatments. They weren't doing much so she said let me go. I watched her cough up lung tissue on a regular basis. I watched her gag on her own lungs. Actually that's what killed her was that she asphyxiated on her own fluids during her sleep. She never smoked a single cigarette in her life. Grandpa, on the other hand, was a chain smoker--you never saw him without one. He fell asleep many times while holding a cig. Burned himself, furniture, carpet, etc. Doctors all agreed that secondhand smoke was the primary cause of her lung cancer based on what her lungs looked like. Trust me, you DON"T want lung cancer or any other lung problems. There is no cure. There is much suffering. Similarly, cirrhosis. Not much they can do to treat it. You just suffer and go.
Had a GF that loved her weed. I had to leave her because of it. She never had any money but made decent money, just spent it on booze, cigs, and pot. That was her life. My life doens't revolve around that. As beautiful and smart as she was, I wasn't going to put up with it and she showed no signs of slowing down on using any of those drugs. Last I heard she was also on her last breath. I just hope she gets her life right before she goes if she hasn't already.