Algophobia problems and experience the results before anything actually happens to them. People suffering from this probably have hyperalgesia. The Fear of Pain Questionnaire (currently the FPQ-III) has been used to test for Algophobia in the past and was found to have good internal consistency and test-retest reliability. Algophobia Algophobia is a phobia of pain - an abnormal and persistent fear of pain that is far more powerful than that of a normal person. Algophobia is much more common in elderly people. It can be treated with behavioral therapy and anti-anxiety medication. The term comes from the , "álgos", "pain" and
Persistent luminescence Persistent luminescence Commonly referred as phosphorescence, persistent luminescence is the phenomenon encountered in materials which make them glow in the dark after the end of an excitation with UV or visible light. The mechanism underlying this phenomenon is not fully understood. However, the phenomenon of persistent luminescence must not be mistaken with fluorescence and phosphorescence (see for definitions and ). Indeed, in fluorescence, the lifetime of the excited state is in the order of a few nanoseconds and in phosphorescence, even if the lifetime of the emission can reach several seconds, the reason of the long emission is due to