General consensus states that adults should get at least six to eight hours of sleep. So it should stand to reason that getting more hours of sleep is a good thing. But, is oversleeping good for you?
Professional athletes often spend up to 10 hours asleep. But their routines are dissimilar to those of regular civilians. Western University at Ontario conducted a study with 10,000 participants from around the world. They all reported their typical sleep patterns and took a cognitive test.
The scientists observed that getting less than seven hours of sleep each day negatively affected the cognitive performance of the participants. This means that less sleep made people unable to reason as keenly as people who got eight hours of sleep. Transversely, those who got over eight hours of sleep- like 10 hours- also had their cognition negatively impacted. Having too much sleep is just as bad as having too little sleep.
Oversleeping causes a grogginess called sleep inertia. Sleep inertia depends on the part of the sleep cycle when you wake up. It can distort your reasoning and decision-making processes.
These results do not apply to everyone though. People who expend a lot of energy during the day benefit from extra hours of sleep. So if you're someone who can add a two-hour workout into your daily routine, 10 hours of sleep likely wouldn't hinder your decision making processes.
If you're feeling groggy due to oversleeping, ensure that the next night of sleep, you get the recommended seven to eight hours. This should help you restore factory settings and allow you to reboot at your optimum levels.

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