Rebecca A Szabo, Elizabeth Molloy, Kara J Allen, Jillian Francis, David Story
Leaders' experiences of embedding a simulation-based education programme in a teaching hospital: an interview study informed by normalisation process theory
Advances in simulation (London, England)
intricate hormonal physiological changes menstrual cycle influence health daily basis although prior studies helped improve understanding menstrual cycle often lack diversity populations included sample size span reproductive life stages paper aims describe dynamic differences menstrual cycle characteristics associated symptoms age large global cohort periodtracking application users work aims contribute knowledge understanding female physiology varying stages reproductive aging cohort study included selfreported menstrual cycle symptom information sample flo application users aged 1855 cycle period length variability frequency menstrual cycle symptom logs described age user based data logged 19 million global users flo app length menstrual cycle period show clear ageassociated patterns higher age cycles tend get shorter cycle length 185 days cohens 059 variable cycle length sd 042 days cohens 009 close chronological age 4044 suggesting menopausal transition cycles periods become longer cycle length 086 days 4885 cohens 026 period length 008 156 cohens 007 variable cycle length sd 280 days 11143 051 period length sd 023 days 6781 cohens 031 proportion individuals irregular cycles highest participants aged 5155 447 lowest 3640 age group 283 spectrum common menstrual cyclerelated symptoms also varies age frequency logging cramps acne lower older participants logs headache backache stress insomnia higher older users symptoms show different patterns breast tenderness fatigue peaking ages 2040 mood swings frequently logged youngest oldest users menstrual cycle related symptoms static throughout lifespan understanding agerelated differences cycle characteristics symptoms essential understanding best care improve daily experience menstruators across reproductive life span