More evidence that an afternoon nap is good for the brain Good news for sleepyheads, as new observational studies confirm the link between afternoon naps and improved cognitive and mental performance.

If that wasn't enough, the researchers said there was a chance that they could also help ease age-related inflammation in the nerve tissues and thus keep the brain healthy. To prove their theory, scientists invited this study to more than 1,500 elderly people who openly declared themselves napping in the afternoons. For research purposes, afternoon naps have been defined as brief bouts of sleep after lunch that last longer than 5 minutes but less than 2 hours. For control purposes, a group of 600 people of similar age was also found, who were not in the habit of taking afternoon naps.

- In this study, we presented three main findings. First, older people who value afternoon naps show significantly higher cognitive abilities compared to those who do not. Second, we have higher levels of triacylglycerols in people who do nap. After all, afternoon naps are strongly related to orientation, language functions and memory, the researchers explain. Importantly, both groups reported about 6.5 hours of sleep at night, which is important because daytime napping did not compensate for the lack of sleep at night and was instead an additional daytime sleep.

Interestingly, scientists emphasize that not all daytime naps are beneficial to health, because, for example, too long naps are associated with an increased risk of stroke and increased mortality: - On the one hand, sleep during the day is good for improving the functioning of the system immune system, while naps and night sleep promote the repair of this system.

On the other hand, frequent sleeping during the day is associated with a decrease in immunity in both younger and older people, the authors of the study explain. The duration web engineering online such naps seems to be particularly important here, because in the case of most negative effects, it is simply too long. Therefore, if afternoon naps are our regular habit, it is extremely important to keep an eye on their duration - they should not exceed 2 hours.