I wonder if this is something that changed over time. As in preservatives and all sorts of chemicals being added to tobacco or alcohol. For example, I can smoke Japanese cigarettes without a problem. I’ve smoked Vietnam era MRE cigarettes, Old Ukrainian unfiltered cigarettes. But I can’t smoke US made ones since around 2007, they make me sick and taste like ash.

I agree. Sitting my yass all day playing video games? Sure, 4-6 hours will be okay. Doing yard work and manual labor in 110 degree weather, I’ll see you in 14 hours. Also, I have sleep apnea so I’m used to feeling dead all day.