I also had one time, also La's family, in the overtaking lane, it is estimated that I fell asleep for a few seconds, and when I woke up, I was only about 30 cm away from the guardrail, and I didn't panic, and slowly returned to the middle. But I was scared to death, and I never said it. Later, every long-distance high-speed drink, Red Bull to prevent sleep, the key is not to eat, hungry, hungry all the way back for a few hours, and the spirit is very strong.
My mother told me: If I have a car in the future, if I see the car in front of me slowly shifting, I must sound the horn to remind him, because he may be very sleepy and can't control his consciousness. I think it makes a lot of sense, and it should be known to everyone.
