Fatigue

What Is Fatigue?

Fatigue is a feeling of tiredness, exhaustion, or lack of energy that can interfere with daily activities.

Prevalence and Age Distribution

  • Fatigue prevalence is high, affecting approximately 1 in 5 adults. While general fatigue is more common in younger adults, chronic fatigue and certain fatigue-related conditions show a pattern of increasing prevalence with age up to around 60-70 years old, then declining in older groups. Overall, women tend to report fatigue more frequently than men across different age groups.

Common Symptoms

  • Feeling tired or exhausted

  • Lack of motivation

  • Difficulty concentrating

  • Muscle weakness

  • Headache

  • Irritability

  • Sleep disturbances