pulsation

It’s hard to know what to make of these data, which sometimes include any sign of life, such as umbilical cord pulsation, and don’t obviously differentiate miscarriage, stillbirth, and abortion.

The spinal cord is an "unfriendly area" for traditional imaging techniques due to significant motion artifacts, such as heart pulsation and breathing.

In addition to the fluid exchange promoted by APQ4 activity in astrocytes, another mechanism by which gamma waves promote glymphatic flow is by increasing the pulsation of neighboring blood vessels.

"During stimulation, we clearly see an increase in slow waves, as well as a response from the cardiovascular system that is reminiscent of cardiovascular pulsation," says lead author Stephanie Huwiler, describing the direct effects during sleep.

"Born alive" is defined as breathing or having a beating heart, the pulsation of an umbilical cord, and voluntary movement of the muscles — regardless of if the umbilical cord has been cut or not.