A new study by a group of physicists in Japan has identified two different modes of sleep roll-overs that may provide useful health information, reports Physics Central.
The researchers proposed that healthy people rollover in two distinct ways, which they call modes – a quick mode that consists of rolling every ten seconds or less, and a slow mode that happens every hundred seconds or more.
Exhibiting too much of one mode and not enough of the other may not change the total rollover count in a meaningful way, it can still be associated with disorders like Parkinson disease. But simply counting rollovers makes it difficult to identify the modes and to see how they compare.
