^^^ Yes, major lack of sleep and driving (or doing anything that requires concentration) is very dangerous and also considered impairment. People fall asleep at the wheel, or zone out to near zero focus on the driving task quite often and sometimes the outcome isn't too good.
In the workplace we use to run continuous 24/7 testing sessions on multi-million dollar hardware for months on end and people were limited to 12 hr shifts max if required, but most worked 8 hrs shifts so they could get some decent rest. Last thing we wanted is someone to make a major mistake and destroy a one of a kind piece of hardware.
IMO, texting or playing around with a cell phone while driving is also impairment (meaning "to diminish in function"). Even though more and more laws keep coming out against it, people just can't put down the phones. Add some weed or alcohol to that and watch out.
In the workplace we use to run continuous 24/7 testing sessions on multi-million dollar hardware for months on end and people were limited to 12 hr shifts max if required, but most worked 8 hrs shifts so they could get some decent rest. Last thing we wanted is someone to make a major mistake and destroy a one of a kind piece of hardware.
IMO, texting or playing around with a cell phone while driving is also impairment (meaning "to diminish in function"). Even though more and more laws keep coming out against it, people just can't put down the phones. Add some weed or alcohol to that and watch out.