Well, it's totally true, and that mechanism, also called the circadian rhythm, takes time to adapt to a new time zone.
ດີ, ມັນແມ່ນຄວາມຈິງທັງ ຫມົດ, ແລະກົນໄກນັ້ນ, ເຊິ່ງເອີ້ນວ່າຈັງຫວະ circadian, ໃຊ້ເວລາໃນການປັບຕົວເຂົ້າກັບເຂດເວລາ ໃຫມ່.