What is fatigue?
Fatigue is a common condition characterized by extreme tiredness and lack of energy. It can have both physical and mental causes. Key terms related to fatigue include:
- Physical fatigue: tiredness and lowered capacity for work caused by physical exertion, lack of sleep, or mental strain. It leads to an inability to continue exercise at the same intensity with a resultant decline in performance.
- Mental fatigue: difficulty concentrating, moodiness, anxiety, apathy, and reduced motivation. It can make even small tasks seem exhausting.
- Chronic fatigue: persistent fatigue lasting longer than 6 months. It is a key symptom of several medical conditions like anemia, depression, sleep apnea, hypothyroidism, and autoimmune disorders.
What causes fatigue?
Many lifestyle, health, and environmental factors can contribute to acute or chronic fatigue:
- Lack of sleep
- Poor diet low in nutrients
- Dehydration and electrolyte imbalances
- Illnesses like flu or infections
- Emotional stress and worry
- Overtraining - exercising too much
- Food sensitivities and allergies
- Poor sleep habits like inconsistent wake/sleep cycle
You may feel especially fatigued if you push yourself too hard mentally or physically without allowing time for rest and recovery. The exact thresholds differ significantly between people.
How to overcome fatigue:
Learning to manage fatigue requires optimizing several areas:
- Get adequate sleep - most adults need 7-9 hours per night
- Follow a nutritious, balanced diet with sufficient calories
- Achieve regular exercise in moderation
- Reduce emotional stress through relaxation techniques like yoga and mindfulness
- Treat any underlying illnesses or nutrient deficiencies
While occasional fatigue is normal, pay attention if it becomes severe or chronic. Consult a doctor to identify and address the root causes. With rest, lifestyle changes, and treatment of medical issues, most fatigue can be successfully overcome.
Let me know if you have any other questions!