At the very least, you will get injured doing farmwork. I don't have statistics on hand, but I'd wager the need for emergency medical support is likely far higher than a white collar office job.
You seem to be healthy with no chronic issues, which is good to hear. If you become sick or injured, and especially if you or a family member develops certain long term issues, you may need to visit a specialist multiple times a month. Sometimes these specialists are only available in major cities.
There was a 30% drop in March 20202: it just happened to recover quickly once people stopped panicking about the lockdowns. There was no reason why people had to stop panicking though: it could have continued.
At least from what few accounts I've heard from engineering in Twitter, it doesn't sound like Mr. Agrawal has much faith in this idea, but that just means he'll be the first to go in the event of the next inevitable breach.
Caffeine can have pretty "bad" effects - issues with sleep, headaches, panic attacks, and all sorts of cardiovascular issues (increased heart rate, sweating, etc).
You should assume any disturbance of your brains chemical equilibrium is bad long term. Those drugs included. Absent fixing a specific deficiency that is.
If a study comes back and says, with a high confidence, that isn't the case for this or that, great, but I think it's a safe assumption for most chemicals.
Edit: Just to be clear, I'm saying it's not enough to show something is bad, as pretty much everything is bad. It has to be bad enough to matter.
Totally agree. However, I highly doubt such a study will be possible for the same reasons we still argue about salt and sugar: what's the control?
Unless we're able to find twins that live largely the same lives absent the one factor, we are really only capable of sussing out the especially harmful things with long term lifestyle studies. If cannabis is as bad as sugar, then we have 40 years of back and forth to look forward to, and the answer will ultimately be: A little bit is bad, but not bad enough to matter more than how many steps you took today, or how sad or angry you were, or how late you ate dinner.
I don’t think assumption is the correct stance, but a healthy skepticism sounds in order.
Alcohol is clearly capable of long term impairment, the debate seems to be about dose response. Nicotine is more questionable, but clearly leaves long term changes in the mind. People abstaining after long term nicotine usage will spend the rest of their lives experiencing cravings. Hell, it seems plausible long term consumption of food types has long term cognitive effects.