It is common to feel weakness at some point in your life. Weakness is lack of power to do something or lack of energy, but fatigue is something different wherein a person feel completely exhausted without feeling sleepy or drowsy. Fatigue has some other symptoms as well. Whatever may be the case, fatigue can be due to a variety of reasons – which may include the following:

  • Dehydration
  • Lack of sleep
  • Physical exertion
  • Diet lacking proper nutrients
  • Loss of appetite
  • Deficiency of vitamins and minerals
  • Smoking
  • Excessive alcohol consumption
  • Excessive coffee intake
  • Long-term illness
  • Hypothyroidism
  • Cancer
  • Rheumatoid arthritis
  • Certain infections
  • Anemia
  • Heart failure
  • Heart disease
  • Autoimmune disease
  • Lupus
  • liver disease
  • Eating disorders
  • Kidney diseases
  • Variety of other infections can also cause fatigue
  • Steroids
  • chemotherapy for cancer treatment
  • Over-the-counter medicines
  • Antihistamines, painkillers
  • Blood pressure medicines