 The healthy study participants will be included from the cohort of a previous study NCT02527395 where areas of secondary hyperalgesia, heat pain detection thresholds, pain during 1 min. thermal stimulation and test results from the Pain Catastrophizing Scale and the Hospital Anxiety and Depression Score will be retrieved. The study consists of 1 study day. The study day will be conducted at a maximum of 2 months and a minimum of 2 weeks after the completion of the previous study NCT02527395.The results of the previous study NCT02527395 will be blinded until all participants have completed the study day. 