Tiredness and fatigue are separate from Caffeine ! IMHO one should endeavour never to drive fatigued. But as I have pointed out to you all as a person very much involved in aeromedical fatigue management. A fatigued brain usually does not recognise it is fatigued so that's why it's so regulated by CASA amongst others. You fly only so many hours and that's it.
Ouch that's really getting personal there Artemis ..... I did not know that Renato was Grumpy and old.
I do a lot of driving medicals and Pilot Medicals. I do find it challenging at times balancing the communities safety, expectations and the patients needs, expectations and personal safety. Medical hammers to check for knee, ankle reflex arc. The point I am making here one cannot make assumptions about everyone. And cast their disapproving finger and play God With their inscrutable like opinions.
Everyday People drink coffee. Many in my circle around me do so as well. Some have learnt, (and everybody is different) to cope with its side effects, being-it visiting the toilet more frequently, tachycardia.......anxiety etc some tolerate caffeine some don't. Some families give the driver lots of caffeine ( coffee or tea) to encourage more stops. Why else are there free driver reviver pit stops offering the driver free coffee?
What about those drivers on the road with prescription opiates!!
Legal yes ....... But some like to take opiates to be able to drive ( otherwise they cannot due to back pain) this is where it gets iffy ...... And dangerous. IMHO. Pffft Caffeine and fatigue are not your real problems here.
Caffeine is the least of your problems. Fatigue is a killer. Agreed. And nobody should be be driving in such states. But as I said earlier a fatigued brain does not recognise that it is fatigued. So you do get a lot of accidents due to that. The aeromedical world is ruled by fatigue mitigation strategies that are adhered to via regulation. The same doctors that came up with these brilliant ideas don't seem to be able to regulate their own hours very well. For example;
Country doctors are usually 24/7 On call work the next day despite being up all night. This is crazy and dangerous. What can you do if there is an emergency after emergency. There is sometimes no let up. These situations are becoming less of an issue, manageable with staffing becoming more manageable.
Have seen young fit athletes with sudden cardiac arrests and deaths due to ingestion of Caffeine related products like red bull in large does or when mixed with other legal substances ( alcohol). These are rarer but shows the wide spectrum of side effects.
All drugs are Poisens it's the dose that matters although some even in small doses are unacceptable.
Now I await the wrath for speaking up