The things we do on an everyday basis may cause general fatigue.

A lack of sleep or too much sleep — an adult person is believed to require around 8 hours of sleep a night. There might be some sleep problems caused by noisy neighbors or small children, and other factors, such as a messy bedroom.
Taking things that influence the nervous system (such as caffeine)
Physical inactivity and bad diet — if a body lacks nutrients, it might have a negative impact on how a person feels. Fast food and caffeine-containing drinks only give a temporary surge of energy.
Work — Fatigue may be caused by work overload, a stressful environment, burnout, and even having no job at all. For example, a shift schedule may have a negative impact on the circadian rhythms that might lead to permanent fatigue.

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