well the MAIN way, based on experience is a kind of adrenaline and coffee shots, that some nurses do to themselves at night.
if used wrong...the results are..."interesting" to say the list.

wait, nurses would actually inject adrenaline? Or do you just mean that natural rush of adrenaline?

at times to get a heart to "wake up and beat again" you can inject something that is pretty close to adrenaline. used on patients close to heart failure to give them a 'time boost of sorts'
they would use a "weaker", sorta, version of that with liquid kind of caffeine and get it RIGHT into their blood stream.

i can only say...it IS a sight to "behold".

damn that's intense.

very. i been in ER settings often for friends. and clinic for myself...
i learned to "spot" those hyped nurses" and several friends with work as a night job at clinics CONFIRMED it.

being an insomniac myself it's different.
i used to work at night on weekends at a club, as EXTRA for my weekly day job, but i was okay with it.
to tell the truth...i have more time NOW adjusting while jobless and just "roaming the net" for information for my books since well...i am functional during the day but night feels lonely when everyone i know is asleep.

and FYI I added extra information on the answer above lol.

Good news everybody. It's a suppository.

This just totally made my morning!!! Thanks for the laugh 😂 I avoid giving suppositories at all costs when at work LOL