Why do we wake up before the alarm bell?

Why do we often wake up before the alarm goes off? Scientists think it is because we are stimulated to get up on time.

In his 1999 study, Jan Born - Ph.D., professor of neuroscience at the University of Tübingen in Germany and his colleagues discovered a special hormone that causes inhibitors called adrenocorticotropin (ACTH ). This hormone has a high concentration in the blood when sleepers have a prediction that they will wake up on time.

We often get up early a few minutes before the clock rings because of the inhibition that ACTH hormones cause.

The above is the result of the experiment on 15 volunteers. All these people begin to sleep at midnight. And they will wake up at 6 am the next day with the first group and 9 am with the second group.

Later, the researchers measured ACTH hormone levels during the pre-awakening period in the first group with no increase in the second group.

It is known that in this experiment, the volunteers did not have the habit of getting up at 6 o'clock.

Luciano DiTacchio - Dr., assistant professor at the Kansas University Medical Center's School of Pharmacy says each person has his own biological clock, but they 'run' differently. The fact that each of us has the ability to spontaneously rise early is due to certain changes in the gene.

It is the transformation of the KDM5A gene, which in turn encodes a protein called JARID1a to create a small variation in the way that the biological clock shows.

Thus, the reason that you often wake up a few minutes before the clock rings is because of the combination of genes that are responsible for our biological clock task with inhibitory hormones in the morning.