Ключевые слова: alarm clock, and period, archaic hour, blood, calendar, care, clean, concept, cotton, cycle, daily routine, delayed, feminine, fertility, guard, gynecology, health, hormonal, hours, hygiene, hygienic, idea, medical, medical competition, medicine, medicines, menstrual, menstrual cycle, menstruation, month, monthly, napkin, ovulation, periods, plug, pregnancy, program, protection, protective, regular, sanitary, schedule, tampon, term, tight, time, times, treatment, woman, worry,