1950s/1960s: What was it about coffee?

I don’t call that solid evidence. I consider it to be suggestive. That’s not solid evidence.

No skin in the game but it sounds convincing to me. Not eyewitness level but if it was a trial I’d accept it as beyond reasonable doubt level.

At the very least probable cause. thanks.

But maybe back to coffee?

And they also drank a lot of very bad instant coffee.

Yes. My folks drank a ton of coffee but it was always Folgers instant. When I was older I asked why. My dad hated clutter (he had heavy OCD) and didn’t want another appliance (coffee maker) “cluttering up” the kitchen.

If I remember it correctly, the hyperactivity of the child isn’t due to excess brain activity, but reduced brain activity. The stimulant brings things back to a better regulated level.

AIUI, the problem is a dearth of dopamine. The caffeine or other stimulant prompts a dopamine release which allows the brain to begin functioning normally for a time.

Military service included a LOT of coffee drinking in the last century. The stress levels in the field meant that coffee was used to keep people alert. Because the water was boiled to make it, it was also safer to drink than water. Overseas, coffee is consumed after dinner to also help digest the meal, flush the fats, etc. Like the mandatory tiki-theme bars and parasols in drinks, the common culture of service overseas in WW1 and WW2 has faded away with that generation. Coffee’s impact on sleep meant nothing to people with PTSD from being in the war. In the South, serving coffee or tea to everyone who showed up at the house was already a thing - usually iced tea because of hot weather and lack of air conditioning in many areas. Coffee was added to the list. Some people are still insulted if you don’t offer them something. Bottled water has become another popular offering to visitors - even people stopping by briefly.
If you want to reduce the coffee offer, set up a new standard by asking for something else - ask for a cup of hot water or ice water or lemonade. If you get your own a few times, they will start to offer it. They aren’t really pushing coffee, they’re pushing hospitality and you can usually redirect their impulse to something that won’t keep you up at night. Bring a container of “countrytime lemonaide” and fix it for yourself when they are offering coffee - see how long before it shows up without you asking. “I’m into this lemonade thing now” is somehow easier for them to accept than “nothing, thanks”.