That time around 4 am is known as "

That time around 4 am is known as "the hour of the wolf" in swedish. It's the time of the night when the body's activity is at its lowest. The melatonin levels are at its highest, body temperature and blood pressure reach their lowest levels and metabolism goes down.

The conditions for being awake is at its worst at this particular time. All of these factors means that you usually sleep through these hours, but if you wake up, the body is extra vulnerable, and you usually don't feel so good. Your psychological defenses are down, and the things you hide and fear might become very apparent.

“The Hour of the Wolf is the hour between night and dawn. It is the hour when most people die. It is the hour when the sleepless are haunted by their deepest angst, when ghosts and demons are most powerful." - from The Hour of the Wolf by Ingmar Bergman

結果 (繁體中文) 1:

那段時間大約 4 上午被稱為"狼小時"瑞典文。它是當身體的活動量最低的夜晚的時間。褪黑激素水準處於最高點、 體溫和血壓達到最低水準和代謝下山。清醒的條件是最糟糕的是在這個特別的時刻。所有這些因素都意味著你通常通過這些個小時，但是如果你醒來，身體是額外脆弱，你通常感覺不太好的睡著。你的心理防線被擊潰了，和你所隱藏的東西和恐懼可能會變得非常明顯。"小時的狼是小時的夜晚和黎明之間。它是大多數人死小時。它是當失眠十分困擾他們最深切的焦慮，當是最強大的鬼魂和惡魔小時"-從小時的狼由英格瑪 · 伯格曼。

結果 (繁體中文) 2:

凌晨4點左右，時間是被譽為瑞典的“狼的時刻”。這是夜晚的時候，身體的活動處於最低。褪黑激素水平是最高，體溫和血壓達到的最低水平和新陳代謝會下降。為保持清醒的條件是在最壞的情況在這個特定的時間。所有這些因素意味著，你通常通過這些小時的睡眠，但如果你醒來，身體多餘的脆弱，你通常不會感覺這麼好。你的心理防線坍塌，你隱藏的東西和恐懼可能會變得非常明顯的。“狼的時刻是夜間和黎明之間的時間。這是小時當大多數人死亡。這是當失眠是由最深切的焦慮困擾，當妖魔鬼怪是最強大的時刻。“ -從狼由英格瑪·伯格曼的小時