Some signs are obvious, like fatigue, catching a cold, or muscle soreness that lingers for several days.

有些信号很明显，比如，疲劳，感冒，或肌肉连续数天酸痛。

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All of us can feel distracted when we're at the mercy of internal factors, like fatigue, stress and anger, and external factors, like television and email.

受到内部因素，例如：疲惫、压力和愤怒，和外部因素，例如：电视、电子邮件的影响时所有人都会分心。

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Thus, if you don't stand (and rotate) over your big toe, your shoe will either pivot you off like a dreidel spun on its side or force you to reset your foot, increasing fatigue while you dither.

所以，如果你没有用大脚趾站立(或者不能以其为中心转动脚)，那么就会导致你的身体像陀螺那样倾倒或者强迫你重新再踩点，便会加重疲劳以及颤抖。

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Traditional chemotherapy indiscriminately kills cells in the affected area of the body, which can cause side effects like fatigue, hair loss or nausea.

BBC: Nano-treatment to torpedo cancer

The typical Lyme infection responds to simple antibiotics, although symptoms like arthritis and fatigue may linger in a subset of patients.

FORBES: Lyme Inc.

Symptoms of measles include fever, cold-like symptoms, fatigue, conjunctivitis and a distinctive red-brown rash that appears a few days into the illness.

BBC: Swansea measles epidemic: Man who died had measles