I will say first that my current position in life comes with exceptionally uncommon circumstances and so I'm not a good measuring stick to use against others. I've been a programmer for decades but I am also a combat veteran, during which time I saw and did many things that even the movies don't show. I was an alcoholic for many years, mostly in response to those things.

But besides that, I am am a lifelong recreational drug user. I have a special relationship with addiction in that I stop myself from getting in too deep. Before I continue, I'll address the overbearing people who think all people should live the way they do and say that yes, I'm completely and utterly aware of my own vulnerability and the knowledge that I'm not invincible or exceptional is actually what keeps me so acutely aware of my own drug use. I keep myself as informed as possible about the substances I use through the use of dose journals, where I track every substance I put into my body (including e.g. caffeine and regular food), along with as much ancillary information as possible, such as my sleep patterns and mood. I spend money to test the substances I buy to ensure they're not adulterated. As for the addiction, I've been bitten a couple of times over my entire life of drug use, early on as a young adult, but for example if I recognize that I'm flirting with addiction, I will just cold turkey whatever substance I'm using and allow my body and brain to "heal". I think it's a willpower issue which allows me to maintain control over the substances, because I've never in my life chased after a high such that I got to a point where it would be dangerous. Even with pharmaceutical opiates, I would completely stop taking them far, far before I ever let myself get to a point where I might be in danger. Willpower and also being informed. I am the only person I've ever met that cares so much about testing my drugs, keeping logs of my drug use, and never taking drugs in dangerous amounts in combination or chasing a high.

So, for the sake of productivity and mental efficiency, I take stimulants pretty regularly these days, but rarely on a daily basis. Adderall and methylphenidate (Ritalin). I swap these prescriptions with my doctor pretty regularly to avoid addiction. I occasionally smoke marijuana. I occasionally take kratom. I do drink caffeine almost on a daily basis, but I can get too busy to remember to make a cup of coffee or grab a Monster from the fridge.

In the past, for recreation, I have used pharmaceutical opiate painkillers, MDMA, mushrooms, LSD, cocaine, and raw opium. I am extremely careful not to chase the high! I am completely at peace with the fact that I cannot feel good at all times, and feeling down or "just okay" is as much a part of life as sleeping. As far as others in the companies where I've worked, I am aware that a small minority of my coworkers used some drugs recreationally, and I am aware that a minority of my coworkers used pharmaceutical stimulants, although the vast majority do use stimulants on a daily basis through caffeine. I think the "drug-using" proportion of my coworkers is a minority, and mostly clustered around the use of pharmaceutical stimulants and marijuana, if we're not counting coffee and tea.