While the test subjects were able to sleep without disturbance after the learning phase on the first day, their sleep was manipulated in a targeted manner on the second day of the experiment — using acoustic stimulation
during the deep sleep phase.
Not exact matches
We might shift slightly
during sleep — say, when an arm becomes numb — without even realizing it, probably around the time in each
sleep cycle when we exit
deep REM
sleep and enter the lightest
phase of
sleep, Dr. Paruthi says.
They found that calcium levels in the body are at their highest
during the
deepest levels of
sleep such as the rapid eye movement (REM)
sleep phase.
The study concluded that impaired
sleeping during the
deep REM
phases are strongly related to a calcium deficiency.