褪黑素削弱晨间认知能力
推荐指数 42.0 NO. 014 · 2026.08.10
发布2026/08/09Score164Comments198
为什么值得看
一项随机对照试验发现，健康年轻人在睡前服用褪黑素后，次日早晨的认知表现显著下降，反应速度和执行功能受损。AI从业者常依赖褪黑素调节作息，这一发现对需要高强度晨间专注的工程师有直接警示意义。
编辑判断
HN评论区有大量程序员现身说法，很多人反馈"吃了褪黑素早上像行尸走肉"但以为是睡眠不足导致，这项研究帮他们确认了因果关系。值得注意的是实验用的是0.5mg生理剂量而非市售常见3-10mg高剂量，实际影响可能被低估。
如果你习惯凌晨debug后靠褪黑素强制入睡、早上又要standup或做深度设计工作，建议改用光照调节或低剂量缓释型，并把重要认知任务安排在服药后10小时之外。
社区反馈
意见分歧 118 条评论
核心争论：褪黑素剂量是否过高导致晨间认知受损，低剂量是否更安全有效
Hard to discuss this with only a short abstract. They don't even give a dose or formulation of the melatonin, and details like "We found no significant differences between the melatonin and sleep groups on any of our sleep measures." raise more questions than they answer.
Anecdote - I've used it dozens of times and I'm always foggy in the AM, so I avoid it if I have to be sharp the next morning. Perhaps it's a coincidence and this study is flawed, but I can believe it pretty easily.
same here. I use 5HTP instead, apparently the same chemical pathway just goes in at a different point. no fog in the morning at all. Nice and sharp, feel good.