Fatigue is defined as a lack of energy and motivation accompanied by symptoms like drowsiness and apathy. It can result from physical exertion, stress, boredom, or lack of sleep. Fatigue is normal in these cases. Fatigue is different from activity intolerance, which is an abnormal state of physical or mental exhaustion that prevents completing daily activities. Activity intolerance can be caused by issues like alcohol or drug use, lack of exercise, heart conditions, or other medical problems and results in chronic tiredness and other symptoms like weakness.

1. fatigue

2. Defination of fatigue
• is a lack of energy and
motivation. Drowsiness and
apathy ( a feeling of not
caring about what happens)
can be symptoms that go
along with fatigue. Fatigue
can be a normal and
important response to
physical activity, emotional
stress, boredom, or lack of
sleep

3. Different between fatigue and activity
intolerance
fatigue Activity intolerance
defination
Is an abnormal state of
physical or mental exhaustion
Is insufficient physiological or
psychological energy to complete
required or desired daily
activities.
reasons
•Alcohol or drug use.
•Excess physical activity.
•Lack of physical activity.
•Not enough sleep.
•Unhealthy eating habits.
•coronary disease.
•decreased cardiac output.
•hypertension.
•congenital problems
Symptoms
•chronic tiredness or
sleepiness.
•headache.
•muscle weakness
•cyanosis
•diaphoresis
•dizziness
•generalized weakness