The salivary melatonin diurnal rhythm may be abolished after transmeridian flights in an eastward but not a westward direction.
Nowak
R
R
D000328:Adult; D000337:Aerospace Medicine; D001315:Australia; D002140:California; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008550:Melatonin / Q000032:analysis*; D008910:Minnesota; D012463:Saliva / Q000032:analysis*
D008550:Melatonin