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Smoking and sleep
Nicotine can hamper a person’s ability to fall asleep or get good quality sleep. Studies have shown that the average smoker gets 30 minutes less sleep compared to non-smokers. Trouble getting to sleep after a cigarette is likely due to the stimulatory effect of nicotine. Nicotine withdrawal during later sleep periods may also affect sleep……
Energy requirements & fatigue
Eating too much food will provide more energy than we need for metabolic and activity needs, leaving the extra energy stores as body fat (weight). The greater your body weight, the more chance you are of experiencing fatigue. The graph below shows that, as body weight increases above 86kg for an average height man, and……
Assessing your Fatigue
Your personal safety, and the safety of those around you, is dependent on three factors when it comes to fatigue: recognition that you are feeling fatigued;understanding the potential consequences of an accident whilst doing the task; andtaking action to manage your fatigue. You may be able to do some tasks during times of fatigue if……
What is fatigue amnesia?
Have you ever driven into your driveway at home and on arrival thought to yourself, How did I get here? I cannot recall the trip home or the last part of the trip. You may have suffered from fatigue amnesia. Amnesia, in simple terms, is the loss of memory. Fatigue amnesia is where a person……
When will fatigue occur?
The time of day affects fatigue, due mainly to the body’s circadian rhythms. Circadian rhythms are natural body rhythms that are driven by the cycle of day and night. The start of the cycle is typically linked to the rising of the sun, and the person getting out of bed after a night’s sleep. During……
Building fatigue resilient workplaces
Imagine being able to do everything in your working and personal life without thinking: “I don’t have the energy to do this”? The good news is that you can take steps to be more fatigue resistant…most of the time.Building fatigue resistance is like completing a puzzle each day. Think for a minute what makes completing……
What can you do to manage fatigue?
Taking action against fatigue happens in two forms: 1) the action you take when you experience fatigue; and 2) the action you take to prevent fatigue and therefore become more fatigue resistant. Figure 1 below summarises the causes of fatigue and identifies the areas that need to be focused on to build fatigue resistance. Although……
An introduction to sleep
Sleep is common throughout the animal kingdom. We do know there is still a lot to be leaned about sleep, despite considerable research. All animals require sleep and no permanent non sleeping species exists. Even plants and bacteria have a regular period of rest and inactivity. Humans spend one-third of their lives sleeping. Far from……
How sleep works
Good sleep helps us wake up feeling refreshed and alert for our daily activities. Sleep affects how we look, feel and perform on a daily basis. If sleep is cut short, the body doesn’t have time to complete all of the phases, which can leave us feeling drowsy, tired and fatigued. IMPORTANTExperts have warned that……
How much sleep do you need?
The amount of sleep that people require varies between individuals depending on many factors. Age is a major determinant of the quantity of sleep. The table below provides a general guide to the number of hours sleep needed through the stages of life. Children generally require more hours of sleep each day, while for most……
Dreaming
There are many theories about dreams including how they occur and what they may mean, if anything. Dreams may not serve any purpose at all and may be merely a by-product of two evolutionary adaptations – sleep and consciousness. The question about the function of dreaming is still unanswered. Dreams often involve the dreamer in……
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……