Such a rhythm whose period is approximately—but not exactly—a day is called circadian.(這種以近似于——但不完全是——一天為周期的節律，叫做晝夜節律。)

What to do: If you suspect you have a circadian rhythm disorder, take steps to get your body onto a regular sleep schedule.(如何做：如果你推測你有生理節奏失調癥狀，采取有規律的睡眠時間的措施。)

More important, these regions included the suprachiasmatic area, which is home to the body's circadian clock.(更重要的是，這些區域包括掌管生物鐘的視交叉上核。)

New experiments on mice have found that a particular gene called per1 fires our circadian rhythm.(通過在實驗鼠身上的實驗，科學家發現一種名為per1的基因能控制身體節律。)

Light will only stimulate your brain’s day/night balance (circadian cycle).(光只能打破你的日夜平衡，導致生物鐘紊亂。)

And that light pollution could_3_our circadian rhythms, which control not only sleep, but metabolism.(而生理節奏不僅控制著人們的睡眠，還控制著人們的新陳代謝。)

This is a benign variation within circadian rhythms known as a chronotype.(這是一種被稱為睡眠類型的晝夜節律的良性變化。)

The other technique experts advise is to stimulate your circadian rhythms with bright light and exercise during the day.(其他技術專家建議采用強光來刺激生物節奏和白天鍛煉的方法。)

Regular mealtimes, not just regular sleep times, help regulate our circadian rhythms.(不僅是有規律的睡眠時間，有規律的飲食時間也對調節我們的生理節奏有幫助。)

For different individual horseshoe crabs, the circadian period ranged from 22.2 to 25.5 hours.(對于不同的鱟來說，其生理節奏的周期范圍在22.2小時到25.5小時之間。)