Symptoms of Excessive Daytime Sleepiness
The symptoms of excessive daytime sleepiness go beyond simply feeling tired. Excessive daytime sleepiness affects mental clarity, physical functioning, and emotional stability. It may also lead to unsafe behaviours if not recognised and treated appropriately.
Core Symptoms
Persistent sleepiness during the day, even after a full night’s rest
Falling asleep unintentionally, such as while reading, watching TV, or during conversations
Difficulty staying awake in passive settings, such as meetings, classrooms, or while driving
Frequent yawning or eyelid heaviness
Feeling unrefreshed after waking up in the morning
These symptoms usually last for weeks or longer and do not resolve with more sleep alone.
Cognitive and Emotional Effects
Sleepiness affects brain function, leading to:
Poor concentration and memory
Reduced problem-solving ability
Slower reaction times
Irritability or mood swings
Lack of motivation or feelings of apathy
In children, it may mimic attention-deficit disorders or behavioural problems.
Physical and Social Consequences
People with excessive daytime sleepiness may also experience:
Accidents and injuries, especially when driving or using machinery
Decline in job or academic performance
Poor social interaction, due to fatigue or mood changes
Avoidance of social or physical activities
Weight gain, if tiredness leads to inactivity
Sleep Episodes (Microsleeps)
One of the most dangerous symptoms is microsleep—a brief, involuntary sleep episode that may last just seconds. This can happen while driving or operating equipment and may go unnoticed until an error or accident occurs.
Symptoms of Excessive Daytime Sleepiness In South Africa
In South Africa, symptoms are often mislabelled as “laziness” or burnout. Many people delay seeking help, believing their tiredness is normal or will pass. Increasing awareness in workplaces and schools can help identify affected individuals early.
Recognising the symptoms of excessive daytime sleepiness is crucial for early intervention. By paying attention to how sleepiness affects daily functioning, people can seek help and regain control of their wellbeing.
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