Claire Torrens works at the Nursing, Midwifery and Allied Health Professions Research Unit (NMAHP RU), University of Stirling. Claire has a background in health psychology and health research. She has worked as a systematic reviewer on a number of different evidence syntheses. She is currently the Research Fellow for an NIHR funded project, Game of Stones. This trial will investigate the effectiveness and cost-effectiveness of a text message intervention designed with men, for men.