Police are warning motorists of the dangers of driving while hungover.
Alcohol can stay in your bloodstream long after last call and some drivers can show signs of hangover impairment up to 20 hours after consumption.
"People need to be very careful because alcohol doesn't just go away with sleep or coffee or whatever you choose. It need's to be processed by your body and that takes nothing but time," said Janice Shoepp, Constable with the Fort Saskatchewan RCMP.
Your blood alcohol content does take longer to drop than it does to rise and you can't speed it up.
"Make sure you ask yourself how tired you are as well. You might be distracted by that fatigue or may not be fully aware of what's going on especially if you have something like a headache or aren't feeling well," added Shoepp.
Mothers Against Drunk Driving reported that in Canada collisions involving alcohol and drugs are the leading criminal cause of death. Nearly four people are killed in these collisions each day.