Even if you think not, our body is regulated by a central biological clock known as the suprachiasmatic nucleus. This is the main regulator of our day to day and is synchronized by light and dark. For this reason, light influences our rest so much.
It is just as necessary to have enough light during the day to successfully carry out our daily activities, just as darkness is necessary for a good rest. If we alter these light times, our biological clock can have synchronization problems and therefore insomnia and other sleep problems appear.
In this sense, driving during the first hours of dawn when it is still dark, for many people can be a sleep problem, since our biological clock has to understand that, even if there is not enough light, our brain must be active.
Our body relaxes thanks to a hormone called melatonin. Is occurs when the pineal gland detects low levels of light and understand that bedtime is coming. If, on the other hand, our system detects a lot of light, it will not generate enough of this relaxation hormone and it will be difficult for us to fall asleep.
Mobile devices before sleeping
Many people consult an electronic device before going to sleep and even in bed itself, mainly mobile phones. These types of devices use a light that activates our biological clock making our brain continue to think that it is daytime and therefore delay the time to rest and start the sleep phase. In addition, they also prevent enough relaxation hormone from being generated.
If you are one of those who watch television until the last minute before going to sleep, it will cost you more to fall asleep. Try to disconnect a few minutes before so that your brain is able to rest, enough relaxation hormones are generated and your body enters the rest phase.
In the event that you cannot avoid consulting any of these electronic devices, our advice is to lower the intensity of the light as much as you can, since for our system it is not the same to receive one type of light as another.
Why do we sleep after eating?
Although our brain knows that it is daytime, our body needs to sleep. At this time of day the dream has no special relationship with light, in this case sleep is related to our glucose level.
After each meal, our blood glucose level increases by reducing our hormones responsible for keeping us alert.
Foods high in carbohydrates and fats make us more sleepy, therefore, if you are going to drive or work after eating, a protein-rich menu is preferable to avoid being sleepy and being able to be active.