Research Reveals The Role Of Norepinephrine Hormones In Cleaning Brain Waste During Sleep

JAKARTA - Professor Maiken Nedergaard of the University of air and the University of Copenhagen revealed that the norepinephrine, which functions as a neurotransmitter as well as a hormone, has an important role in the process of contracting blood vessels.

This process produces a slow pulse that creates a stream of rhythmic fluid, helping to clean up waste from the brain.

This is similar to turning on a pre-sleepnealer and waking up with a clean brain, Nedergaard explained in an interview reported by SWNS and quoted as saying by ANTARA.

This study focuses on a brain waste cleaning mechanism known as glymphatic clearance. The glymphatic system works naturally to remove harmful toxins and proteins, including plaques associated with neurological disorders such as Alzheimer's. However, what triggers this system to work has just been revealed through recent research.

Professor Nedergaard's team used a sleeping mouse brain model to study the relationship between norepinephrine and blood flow in the brain. The results showed that norepinephrine waves play a role in regulating blood volume in the brain, creating rhythmic pulses in blood vessels. This pulse then drives brain fluids to effectively clean up waste.

Natalie Hauglund, lead author of the study, described norepinephrine as an "orch conductor" that regulates narrowing and widening of blood vessels, ensuring cerebrospinal liquid can clean the brain of waste efficiently.

However, not all sleep provides the same benefits. In the study, the rats who are given the zolpidem "sleeping medicines commonly used" do fall asleep faster, but the activity of norepinephrine waves during sleep in these conditions decreases by 50 percent compared to natural sleep. As a result, brain liquid transport decreased by more than 30 percent.

These findings, published in the journal Cell, suggest that sleeping pills such as zolpidem have the potential to disrupt the waste cleaning process that relies on norepinephrine during sleep. Hauglund stressed the importance of revisiting the benefits of sleep induced by such drugs.

The more people who use sleeping pills, the more important it is to determine whether the resulting sleep really provides health benefits. If these benefits are not optimal, people need to know it in order to make wise decisions, "explained Hauglund.

Researchers believe these findings are also relevant to humans, although further studies are needed to confirm it. According to Nedergaard, further understanding of the role of norepinephrine can help create solutions to ensure restorative and quality sleep.

Lack of sleep not only causes fatigue but also affects the ability of the brain to manage stress and negative thoughts, thus further emphasizing the importance of maintaining sleep quality as part of a healthy lifestyle.