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we are Sleepman uses two metal electrodes for the measurement of skin galvanic response. This method is usually done with the help of gel electrodes to achieve better conductance and lessen measurement error. However the device, with the expection of the adhesive Sleep enhancer attachable palm electrode, do not aware utilise conductive gel for the electrodes as that would be too uncomfortable for daily usage. It is then probable that the metal electrodes will irritate the skin of any ethical the wearer after prolonged usage, similarly to cases with [[Fitbit]] or health issues relevant to this particular device[[Apple watch]].
TODO: Dočíst http://www.sciencedirect.com/science/article/pii/S0263224113002571
TODO: Dočíst http://www.birmingham.ac.uk/Documents/college-les/psych/saal/guide-electrodermal-activity.pdf
health issues
== Ethical & Health Issues ==
== Public & Media Impact and Presentation ==
Electrodermal activity, also referred to as galvanic skin response or skin conductance, is a measure of autonomic changes in the electrical properties of the skin in response to sweat secretion.<ref>http://www.sciencedirect.com/science/article/pii/S0165027010002335</ref><ref>https://imotions.com/blog/gsr/</ref> It has been used in the research on stress<ref>http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3386730/</ref><ref>http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5325784</ref>, anxiety levels<ref>http://www.sciencedirect.com/science/article/pii/S0165178198000663</ref><ref>https://www.scopus.com/record/display.uri?eid=2-s2.0-36849010148&origin=inward&txGid=0</ref>, and emotional arousal.<ref>http://iopscience.iop.org/article/10.1088/0967-3334/32/10/002/meta;jsessionid=8ABCA3BA9387787F1E505533F4898408.c3.iopscience.cld.iop.org</ref> Studies shown that the link between EDA and different cognitive states can indeed be used to measure them.
The device, however, will not achieve precise measurements because EDA measurements are prone to contain artefacts caused by body movement, ambient temperature, and skin resistance.<ref>http://www.sciencedirect.com/science/article/pii/S0263224113002571</ref>
The article concludes with describing the benefits of 'power napping' and the scientific research about it.<ref>https://sleepman.com/sciencedevelopment/#science</ref>
TODO: Rozepsat citace
