Compilation of Videos (Own and External)

“No time change for the internal clock”

Time changes from winter to summer time cause a longer suppression of melatonin secretion in the evening. Dr. Marcel Zeising provides an explanation (German):

Snoring, breathing stops – and the consequences

A Thuringian physician by the name of Georg Grau pointed out the connection between snoring and interrupted breathing as early as 1688 in his book “Hypnologia”. PD Dr. Sven Rupprecht, Head of the Interdisciplinary Centre for Sleep and Respiratory Medicine at Jena University Hospital, explains this observation and other possible consequences (German).

Traumatic experiences

Traumatic experiences and, in particular, post-traumatic stress disorder (PTSD) are associated with sleep disorders. Prof. Dr. Victor Spoormaker sheds light on the scientific background:


In the clinical picture of “insomnia”, the focus is on difficulties falling asleep and staying asleep. But what is the best way to record or even measure these symptoms? So-called biomarkers are supposed to do the latter. PD Dr. Thorsten Mikoteit explains the scientific approach:

Sleep disorders
Heart rate variability (HRV) can now be easily measured with wearables such as smartwatches. Dr. Marcel Zeising explains the scientific connection – from the autonomic nervous system via HRV to subjective sleep disorders (German):