What You Need To Know About How Fatigue Affects You

What You Need To Know About How Fatigue Affects You

Is it fatigue or sleep deprivation?

Fatigue is that feeling you get when you’re physically or mentally tired or both. A lack of sleep or sleep disturbances can cause fatigue along with a whole list of other lifestyle, workplace, and psychological factors. It’s important to keep in mind that fatigue is a symptom, not a condition. To resolve it, you need to find the underlying cause. Fatigue is often confused with sleep deprivation. Sleep deprivation is also caused by a lack of sleep or sleep disturbances. Both fatigue and sleep deprivation impact your behavior and body.

Your behavior

When you are consistently sleeping less than 7 hours a day, it can impact your mood and behavior in many ways:

    • Poor concentration and increased forgetfulness
    • Increased moodiness and emotional insensitivity
    • Impaired judgments and ethics
    • Elevated stress levels
    • Growing lack of empathy or concern
    • Reduced productivity
    • Lack of motivation
    • Increased chance of causing critical errors
    • More likely to cause or be involved in an accident
    • Resilience declines
  • Increased likelihood of missing work or not completing work

Your Body

The lack of sleep can also have a variety of short-term effects on your body including:

  • A headache or dizziness
  • Sore, aching, or weak muscles
  • Reduced hand-eye coordination
  • Blurry vision and hallucinations
  • Decreased speed, accuracy, and reaction time
  • Increased susceptibility to injury

It can also have serious long-term risks for your health including:


  • Increased risk of stroke
  • Higher chance of developing dementia
  • Decreased ability to self-repair

Immune system

  • Vascular inflammation
  • Harder time fighting off disease
  • More susceptible to infections


  • Higher likelihood of heart attack
  • Increased risk of hypertension, heart failure, and coronary artery disease


  • Poor regulation of glucose and insulin
  • Increased risk of Type II Diabetes


  • Altered hormone regulation
  • Increased appetite
  • Weight gain
  • Gastroesophageal reflux


  • Collagen degrades
  • Skin looks blotchy and puffy
  • Dark circles under eyes
  • Loss of elasticity

Getting to the cause of your fatigue or sleep deprivation is essential in order to eliminate the short and long-term effects.

You can get an assessment of over 30 possible causes with a Sleep Profile from Restafy. Your results are presented with easy to understand visuals, and you will get action steps for each issue identified.


“The feeling of sleepiness when you are not in bed, and can’t get there, is the meanest feeling in the world.”

-Edgar Watson Howe