Inclusion Criteria:  Aged 18-65 Fluent in spoken and written Swedish Willing to watch a video containing emotional, distressing footage Have access to an internet enabled smartphone/computer  Exclusion Criteria:  Have participated in a study in which similar stimuli were used Currently receiving treatment for a mental health problem (e.g. depression, anxiety, ADHD, addiction), including psychological therapy, counselling or medication Neurological illness (e.g., epilepsy) Planning to undertake a stress-inducing examination (e.g. university examination or driving test) during the week of study participation.