Quit. Your management is not giving you what you need in order to do your job.

If you can listen to headphones (big closed ones) and people leave you alone, you might find it possible to concentrate. But in most offices people won't respect your need for concentration, and the glare from the lights that can't be dimmed will make eye strain worse.

Choose music that has few words and few silent parts. Jazz, some classical, trance. Silent parts to the music allows you to briefly hear the noise in the office and be distracted. Prominent words are distracting.

Visit almost any city anywhere in the world besides the US.

You think it's worse to drink nothing rather than pure water if you are exerting yourself to the point where you are dehydrated from sweating?

Or this could be the amount you need to drink in a day to be healthy, if you're physically active in hot weather.

This depends on the employer or how they do the background check. A felony charge and conviction all shows up in the documentation when they do the background check. It is worse to have a pending case (which is what a dropped felony charge looks like in certain databases) than to have a case that was resolved years ago.

In the US, when doing an NCIC check, this is not always true. The charge still shows up. Even if the charges were sealed, this does not stop a brief summary of it from showing up on an NCIC records check done by an employer.

While there may be some way to have it removed, the fact is that if you go through the process of having things sealed, and every lawyer and court clerk etc involved says it is sealed and can't be seen by anyone, this in no way means that it will not show up on an NCIC search. If there is a way to have it removed from NCIC, this is not commonly known by lawyers and people who get this done are in the minority.

Oops, Nicotine is not the sole psychoactive chemical in tobacco.

Oddly I'd consider this an obvious typo that doesn't need correction, but there's already too much confusion here about the difference between a molecule and a plant that produces that molecule.

Governments often make this difficult to distribute/obtain because the device can be considered a "drug delivery device", while nicotine incidentally contained in tobacco is not always legally considered a drug.

Still, nicotine is not the sole psychoactive chemical in nicotine, readily apparent if you compare the effects of tobacco to vaporized pure nicotine.

Morphine is one molecule, heroin is another, similar molecule that is more efficient in the body.

Neither contains any impurities by definition. Things advertised as such may contain impurities. But both are specific molecules and nothing else.

Obviously the risk of a drug being contaminated with impurities can be greatly increased by the government's treatment of the regulation of that drug.

In much of the world, heroin is recognized as being a safe and effective pain killer. It is used regularly in hospitals in the UK.

The reason heroin is an effective recreational drug is due to its safety compared to other opiates.

The situation is similar (although much more extreme) with methamphetamine. Enough caffeine to keep you awake for a week would have a high chance of killing you outright.

Considering the low cost of making heroin from morphine, the use of morphine instead is essentially a deliberate waste in order to satisfy political considerations.

If carcinogens have no real safe levels, what possible definition are you using for "safe"?

You realize that the word "safe" does not mean 100% completely impossible of causing any harm, right?