Michael Tree
First Post
This is quite true, and applies to dusk as well as dawn. It's not just because of how light affects our sleep cycle, but also becasue of the way our eyes work. The reasons are complicated, but in a nutshell, dusk/dawn light is too dim for the cones in our eyes to work properly, so our daylight vision is impaired, but it's also too bright for the rods in our eyes to work, so we don't have nightvision either. Because of the way the brain is wired, our reaction time and perception of motion are also impaired, and it's much more impairing than it feels.Piratecat said:- Pielorinho, remember that 5-6 am is the worst, right around dawn. Be especially careful then. If you're well-rested when you start your drive, you should be okay.
For that reason, when driving long distances, I recommend always stopping for a break during dusk and dawn. Stopping for a half hour for breakfast or dinner will give your eyes and brain much needed rest, and will keep you off the road at the most dangerous times of the day.