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Sleep debt
Sleep debt is the cumulative effect of not getting enough sleep. Two kinds of sleep debt have been proposed: 1) partial sleep deprivation; or 2) total sleep deprivation. Partial sleep deprivation occurs when a person gets inadequate sleep for many days or weeks. Total sleep deprivation occurs when a person is kept awake for days……
When should I sleep?
Our levels of alertness and attention are influenced by our circadian rhythms, as shown in the figure below. Circadian rhythms allow us to feel more alert during the day and less alert during the evening. This is the primary reason it is difficult to stay awake at night and why we may struggle to sleep……
What is fatigue?
Fatigue is not a condition, but rather a symptom of many different situations, illnesses or conditions and can be defined quite simply as a feeling of weariness, tiredness, or lack of energy. The presentation of fatigue can be unpredictable and its causes diverse, making its management difficult. One thing is for sure: that each and……
Napping
Effective napping is a skill, which cannot be achieved by everyone. Napping cannot replace sleep, but can assist in times of sleep debt, extreme tiredness and/or when heightened alertness is required for your safety, such as driving a car. Naps may improve subsequent performance and alertness for a period of time, ranging from 2 to……
Why is fatigue a problem?
The consequences of fatigue are unpredictable. They can range in severity and should not be taken lightly. The simple act of falling asleep may result in something as harmless as lost production, but it could also cause an accident or catastrophic event, whereby you may injure or kill yourself and/or others! Fatigue typically leads to……
Sleep Disorders
It is estimated that 6% of the population suffer from sleep disorders. Sleep disorders may make some health conditions worse such as, heartburn, depression, asthma and heart disease. Sleep disorders are diagnosed by a GP or sleep specialist. If you are experiencing poor sleep and have some of the following symptoms, you may want to……
Who is responsible for your fatigue?
Fatigue affects everyone, at some time or another!…making US ALL responsible! When someone is fatigued, who is the first person to experience the effects? That’s right…you are! You will experience the adverse effects of fatigue long before you have a fatigue-related incident. Anyone who has fallen asleep at the wheel will have felt the effects……
Exercise and sleep
Regular exercise can considerably improve the quality and quantity of sleep, as well as, having other benefits to general health and wellbeing. Exercise improves sleep by improving the release and uptake of neurotransmitters in the brain. This provides a positive environment for the brain to function allowing sleep to occur more naturally.There are some considerations……
What causes fatigue?
Fatigue is caused by a range of different factors. It is usually not just one factor but a combination of factors that will explain someone’s fatigue. Being able to characterise the symptoms will enable you to identify the underlying cause/s of your fatigue and take action to increase your fatigue resistance. The Fatigue Cause Model……
Mood and sleep
It’s no surprise that sleep, or a lack of sleep, affects our mood. One sleepless night will cause most people to be more irritable, short-tempered and stressed. After a good night’s sleep, your mood often returns to normal. Whilst sleep does affect mood, mood also affects sleep. People suffering anxiety or stress will experience agitation,……
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