![]() It is to do with the brain telling the body to reprioritise so that we use our energy to heal and get well. “It is easy to understand why we get tired when we are sick. She is trying to understand how this is affected by inflammation. She studies Illness Behaviour: how we behave and feel when we are ill. It can be graded according to self-estimated scales and extreme tiredness can be hard to live with. ![]() Great tiredness and exhaustibility also occurs after traumatic brain injuries after accidents and falls.Īccording to Julie Lasselin, a researcher within the field of psychoneuroimmunology at Karolinska Institutet and the University of Stockholm, tiredness is a feeling. It is also common in cancer and in several autoimmune and inflammatory diseases, such as rheumatic diseases, psoriasis, and MS. For an example, it is common in cases of diabetes, depression, allergies, and thyroid disease. This extreme tiredness occurs in many conditions. The word used to describe severe tiredness, mental or physical, that cannot be rested away is fatigue. It can also be used when someone is sleepy or even bored. It can describe both a pleasant sensation in the body experienced after exercise or an unpleasant feeling of being able to process any more information. The concept of tiredness is also linguistically fuzzy. Additionally, there is no tiredness centre in the brain or a substance that may explain how tiredness arises, the way there is a sleep centre and certain hormones with clear connection to sleep. And there is no certain knowledge on whether it is these mechanisms, whichever they may be, that have malfunctioned when we experience pathological fatigue, or if something else has happened. The mechanisms in charge of mental fatigue and recovery are largely unknown. It is also unclear what happens inside of us when we get tired and then perk back up. This can lead to an acceptance of a tiredness that is actually morbid. ![]() Wheres pain is more or less always a signal that something is wrong, tiredness is completely normal. ![]() We may, for example, experience a general listlessness after a severe cold – we have less energy, even though we slept well.īut as a symptom, tiredness is tricky. But tiredness is something beyond sleepiness. ![]()
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