The more research I do on fatigue, the more I realize how many causes there are. The possibilities seem nearly endless. So I decided to try and compile an exhaustive list.
Here is what I have found so far:
- Chronic fatigue syndrome
- Anemia
- Hyperthyroidism
- Hypothyroidism
- Diabetes
- Low testosterone
- Sleep apnea
- Lyme disease
- Fibromyalgia
- Insomnia
- Chronic infection or inflammation
- Chronic kidney disease
- Alcohol or drug use
- Acute liver failure
- Oxygen deprivation through nasal obstruction
- Oxygen deprivation due to shallow breathing
- Oxygen deprivation due to swollen adenoids and or tonsils
- Chronic Obstructive Pulmonary Disease (COPD)
- Emphysema
- Jet lag disorder
- Poor mitochondrial health
- Poor gut biome
- Sleep deprivation due to caffeine
- Sleep deprivation due to late night screens
- Sleep deprivation due to poor sleep environment
- Oxygen deprivation due to allergies
- Poor digestion due to allergies
- Poor digestion due to lack of intestinal flora
- Calorie restriction
- Overeating
- Obesity
- Chronic fatigue due to carbohydrate sensitivity
- Inflammatory bowel disease
- Sleep deprivation due to caffeine sensitivity
- Chronic fatigue due to lack of exercise
- Excess physical activity
- Dehydration
- Chronic fatigue due to hormonal imbalance
- Depression
- Anxiety disorders
- Grief
- Cancer
- Concussion
- Multiple sclerosis
- Heart disease
- Vitamin D deficiency
- Iron deficiency
- Creatine deficiency
- Vitamin D deficiency
- Seasonal Affective Disorder
- Medications (e.g., antihistamines)
- COVID-19 (long COVID)
In the future, I will try to expand this list and link to relevant articles, both internally and externally.
