Sleeping poorly is almost as dangerous as drinking: the deadly risk of self-deception

Although we've been hearing warnings about the dangers of alcohol and sleep deprivation while driving for years, the numbers are still shocking. According to the Directorate General of Traffic ( DGT ), between 30 and 50% of fatal road accidents are related to alcohol consumption. Added to this is another factor we often overlook: drowsiness. Every year, around 75 people lose their lives and another 250 are injured in accidents where fatigue or sleep problems play a decisive role.

Myth 'VS' reality

Part of the problem lies in the fact that many myths still circulate that minimize these risks. One of the most widespread is the belief that only excessive alcohol consumption poses a real danger. Nothing could be further from the truth: even small amounts affect reaction time, coordination, and perception. At a blood alcohol level of 0.5 grams per liter, the likelihood of an accident doubles; at 0.8 g/L, the risk increases fivefold. Furthermore, alcohol induces a dangerous feeling of euphoria that reduces the perception of danger and fosters false confidence.

Fatigue, the second worst enemy

And lack of sleep isn't far behind. It's, in fact, the second most common cause of accidents after alcohol. Getting less than five hours of sleep before getting behind the wheel quadruples the chances of having an accident. If you get less than four hours of sleep, the risk increases eleven times. Added to this is drowsiness caused by medications that affect the nervous system, a factor that many drivers ignore or don't take seriously.

Fortunately, technology offers increasingly accessible allies: portable breathalyzers or systems that detect signs of fatigue and warn the driver before driving off. Some vehicles even lock the ignition if they detect a high alcohol level. However, in the case of fatigue, the final decision still rests with the driver. Therefore, experts insist that technology must be complemented by responsibility and awareness. Knowing that someone is tired is useless if you don't act accordingly.