Quick Check
Are you sleeping 7+ hours but still waking up exhausted?
This is Fatigue, not just sleepiness.
It often points to an underlying issue like sleep apnea, anemia, nutrition, or stress rather than just "needing a nap."
Top 6 Energy Thieves
Poor Sleep Quality
It's not just hours; it's depth. Alcohol, blue light before bed, or sleep apnea can destroy your deep sleep phases (REM).
Anemia
Lack of red blood cells to carry oxygen. Common in women with heavy periods. Causes extreme tiredness, pale skin, and cold hands.
Thyroid Issues
Hypothyroidism (underactive thyroid) slows down your metabolism, making you feel sluggish, gain weight, and feel cold.
Dehydration
Even mild dehydration thickens your blood, making your heart work harder to pump it.
Depression/Anxiety
Mental health is a huge energy drain. Depression can make getting out of bed feel impossible physically.
Sedentary Lifestyle
Counter-intuitive but true: Doing nothing makes you more tired. Bodies are built to move.
Medical Review
Reviewed by: Ricardo Hamilton, MD
Last Updated: December 15, 2025
Sources: Mayo Clinic, NHS, Cleveland Clinic