他们只是推测这跟退黑激素分泌减少有关。
They're only speculating that it's linked to decreased levels of melatonin.
退黑激素可以帮助改善偶发性失眠， 调整时差，或改善睡眠品质。
Melatonin is an excellent choice for people experiencing occasional sleeplessness, those experiencing jet lag, or anyone who just wishes to improve the quality of their sleep.
他还认为昔多芬的作用至少和目前用于治疗时差综合症的退黑激素的作用类似。
He said sildenafil worked at least as well as melatonin, a jet-lag treatment.
补充退黑激素帮助维持规律的睡眠模式，夜间宁静的入睡，早晨醒来会感觉活力充沛。
Melatonin is a supplement that works in harmony with your natural sleep cycle to support a sound, tranquil night's sleep so you can awaken refreshed.
两阶段式导入系统，先快速释出退黑激素帮助入睡，再维持稳定缓慢的释出帮助保持整晚熟睡。
This biphasic delivery system releases melatonin quickly and then steadily to help you fall asleep fast and stay asleep all night.
退黑激素帮助调节睡眠模式，在最近的几年里，科学家发现，这些睡眠模式依赖于人体的新陈代谢。
Melatonin helps regulate sleep patterns, and in recent years, scientists have found that these patterns are tied to metabolism.
退黑激素帮助调节睡眠模式，在最近的几年里，科学家发现，这些睡眠模式依赖于人体的新陈代谢。
Melatonin helps regulate sleep patterns, and in recent years, scientists have found that these patterns are tied to metabolism.
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