title: Space environment, electromagnetic fields, and circadian rhythm.
abstract: Human space activity began in 1961. About 400 persons have gone to space since then, and about 70 of them have stayed more than 1 month. Circadian rhythm and sleep in space have been investigated several times, though the effect of longer stays in space has not been adequately clarified. Electromagnetic fields are different in the space environment, especially in deeper space missions, such as the Moon or Mars, but their effects on human health have rarely been studied. In this article, we summarize the current status of the International Space Station project, study circadian rhythm and sleep in space, investigate electromagnetic fields, and state the necessity for investigating this research field.
authors.forename: R
authors.initials: R
authors.lastname: Izumi
authors.forename: N
authors.initials: N
authors.lastname: Ishioka
authors.forename: K
authors.initials: K
authors.lastname: Mizuno
authors.forename: T
authors.initials: T
authors.lastname: Goka
mesh_terms: D002940:Circadian Rhythm; D004574:Electromagnetic Fields; D004777:Environment; D006801:Humans; D013026:Space Flight