The health information service "Luna Luna" operated by MTI Co., Ltd. announced that it will cooperate with the "Research to redefine the normal range of menstrual cycle and basal body temperature" conducted by the University of Tokyo as a welfare labor science research project.

 In fact, for the definition such as "normal menstrual cycle is 25 to 38 days" (Japan Society of Obstetrics and Gynecology) and basic information on menstruation published in textbooks for doctors, refer to the data in the United States in the 1950s. ing.Moreover, the US survey has a small number of subjects, 650 (3 menstrual cycle), and experts speculate that there is a normal range of menstruation that is more suitable for modern Japanese women.
In addition, basal body temperature data, which is used as a barometer of female health, such as prediction of ovulation date, is also based on research reports of only about 50 cycles more than 3000 years ago, and there is concern about data bias.

 In response to this, a group of Associate Professor Osamu Hiraike of the Department of Obstetrics and Gynecology, University of Tokyo, will start research aimed at redefining the normal range of the menstrual cycle and basal body temperature.For verification, we will utilize big data of the menstrual cycle and basal body temperature of "Luna Luna", verify the normal range of them, aim to establish a new definition, provide services and medical care that are more suitable for modern women, and women. To create new knowledge about health care.

 Associate Professor Osamu Hiraike of the University of Tokyo said, "In order to create a virtuous cycle of sustainable growth and distribution of Japanese society, comprehensive female health support and establishment of basic data are urgent issues in Japan. In this research, MTI Co., Ltd. The main purpose is to collect data on the menstrual cycle over the past five years from MTI's menstrual app and obtain normal values ​​for the menstrual cycle. "

 "Luna Luna" started its service in 2000 as a pioneer of "physiological day management" that can be recorded on mobile phones.Currently, from the function of predicting menstrual days and ovulation days from past menstrual days and notifying daily changes in physical condition, to services that support from pregnancy to pregnancy and childbirth with unique prediction logic and advice, for life stages and worries. At the same time, it supports the life of a woman.For this research, the menstrual cycle and basics of women who have registered their menstrual information from January 2015, 1 to December 1, 2019 in the "Luna Luna" app, "Luna Luna" Web, and "Luna Luna Body Temperature Note". Provide body temperature data.

reference:[MTI Co., Ltd.] "Luna Luna" cooperates with the research of the University of Tokyo, which is carried out as a research project of the Ministry of Health, Labor and Welfare!

Tokyo University

Established in the 10th year of the Meiji era.A university with the longest history in Japan and at the forefront of Japanese knowledge

The University of Tokyo was established in 1877 (Meiji 10) by integrating the Tokyo Kaisei School and the Tokyo Medical School.Since its establishment, it has developed education and research in a unique way in the world as a leading university in Japan and an academic center for the fusion of East and West cultures.As a result, many human resources have been produced in a wide range of fields, and many research achievements […]

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