Curious about how your personality, emotions and behaviours vary across your menstrual cycle? This study is part of a movement to better understand how the menstrual cycle influences our psychology, health and wellbeing. If you decide to take part in this study, you would receive 30 x 5-minute daily emails for 45 days, linking you to an online survey. Each survey takes approximately 5 minutes to complete and you can complete as many or as few daily surveys as you like. The surveys ask a range of questions about your emotions, thoughts, health and behaviour each day. At the end of 45 days, you would receive personalised feedback showing how these changed for you across your menstrual cycle.