The secret of success in exams has come out.

 The secret of success in exams has come out. If you want to succeed in exams, then the secret is hidden in your sleep.

This was revealed in a study in the United States. Carnegie Mellon University researchers examined the relationship between the duration of night sleep and students' test grades.

Research has found that getting less than 6 hours of sleep a night has a negative impact on students' test results.

It has been proven in several research reports that sleep is very important for health and performance.

But this study examined the relationship between sleep and academic performance.

A short night's sleep may not only lower students' test grades but also affect their ability to learn in classrooms, the researchers said.

In this study, 600 students were included and their sleep habits were evaluated using trackers.

The results showed that students suffering from sleep deprivation have a significant decrease in their academic performance and are more likely to score low on exams.

When your sleep duration falls below 6 hours, it takes a toll on the body's systems, researchers said, even with strenuous effort.

He said that the results show that we have to pay the price of lack of sleep in the education field and therefore it is important to give importance to sleep at night.

The results of this research were published in the Proceedings of the National Academy of Sciences.