During REM sleep, the brain exhibits an unusual combination of phenomena: Blood flow increases, and levels of an important metabolic component also rise—while at the same time, ATP levels—the brain’s primary energy source—decrease in nerve cells. Researchers at Tohoku University have studied this relationship in sleeping mice in real time. The results show that the […]
After a stroke, the brain begins a lengthy repair process. This process involves more than just replacing damaged nerve cells or establishing new connections; metabolic byproducts and inflammatory signaling molecules must also be removed from the affected tissue. A new study from the University of Rochester now suggests that the body’s internal clock may play […]
How much sleep we get has long been considered an important factor in our health. But a night’s sleep isn’t simply a matter of a certain number of hours. While we sleep, our brains go through various sleep stages that alternate several times throughout the night. A large new study now shows that this sleep […]
Our bodies follow a daily rhythm. Activity and rest alternate; we become more active at certain times of the day and return to a state of rest at other times. This pattern is not random. It is linked to our biological clock and the timing of numerous bodily functions. But could our personal daily rhythm […]
The human heart works nonstop. Day after day, it pumps blood through the body, adapting to a wide variety of stresses in the process. Two recent studies show just how complex this adaptability is. A study involving more than 11,000 people suggests that increased exposure to light at night is associated with changes in the […]
During REM sleep, the brain exhibits an unusual combination of phenomena: Blood flow incre... [Read More][weiterlesen]
After a stroke, the brain begins a lengthy repair process. This process involves more than... [Read More][weiterlesen]
How much sleep we get has long been considered an important factor in our health. But a ni... [Read More][weiterlesen]
