"The CDC defines fatigue as a state of physical or mental exhaustion that does not improve with rest, distinguishing it from simple sleepiness.
Overall, 71.5% of respondents reported feeling fatigued on at least some days, with 16.6% reporting "frequent fatigue" — defined as feeling exhausted most days or every day.
"Fatigue can be caused by numerous issues," Dr. Earnest Lee Murray, a board-certified neurologist at Jackson-Madison County General Hospital in Jackson, Tennessee, told Fox News Digital.
While underlying hormonal, cardiac or neurological conditions can play a role, "a vast majority of fatigue people experience is probably related to poor sleep quality as well as psychosocial stress, which a lot of times go hand-in-hand."
Frequent fatigue is significantly more common among women (20%) than men (13%)."
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First seen: 2026-09-17 ·
Last seen: 2026-09-17 ·
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