Many who are active know about the following situation: a week should get up early to go to work and be active, so usually and go to bed at a normal time, about 11-12 hours. When the weekend will go to a party and will return in the early morning hours. Even if you are not drinking, the effect is well known: hangover, apathy and laziness all day then. Additionally, they have a problem with settling with rising again early because their biological clock they have disturbed in their function.
Now scientists at Vanderbilt University have found a way to restart the daily biological clock in experimental mice. Biological clock in mammals consists of chemical molecules that travel and encourage different reactions in the body, and they are coordinated by the "clock" which is located in the brain as a part of the nerves. Since previously found that these nerves are closely connected to the optic nerve and react to changing light of the day, and according to the same regulate the excretion of controlling molecules.
Scientists study in experimental mice were able to find a way to stimulate (or turn off) this group of nerves, and it managed to simulate the daily cycle - and reboot. This is done using a sophisticated technique called optogenetika, which involves the insertion of genes that create fotoosetlivi proteins in specific populations of cells (in this case, those cells that are responsible for the biological clock). After stimulation of these specific neurons is accomplished by putting the laser through an optical cable that is implanted in the brains of mice.
Researchers in the study found that by stimulating neurons group responsible for the biological clock they could regulate overslept and waking cycles of mice and reboot it.
This type of stimulation may be able in the future to help people who have shifted their biological clock and allow them to get used to the new conditions immediately after you perform, such as the famous "slow air" (jet lag) which experience the people who travel through different time zones. The shift of the biological clock is quite harmful to our body and proper excretion of hormones, as well as our immune system.