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Iron deficiency can also cause shortness of breath, and amplify the symptoms of any chronic condition, such as depression. It can also have an affect on your mood, ability to focus and sleep quality .
Fatigue in a medical context is used to cover experiences of low energy that are not caused by normal life. [2] [3]A 2021 review proposed a definition for fatigue as a starting point for discussion: "A multi-dimensional phenomenon in which the biophysiological, cognitive, motivational and emotional state of the body is affected resulting in significant impairment of the individual's ability to ...
Feeling tired after eating is common and many factors can cause that post-meal fatigue, from the types of foods you ate to underlying conditions. The Real Reason You Feel Tired After Eating—and ...
Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness, or lack of energy. It can be accompanied by depression , decreased motivation, or apathy . Lethargy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, drug abuse, boredom , or a symptom of an ...
[6] [4] Though typically cast as a worsening of existing symptoms, patients may experience some symptoms exclusively during PEM. [6] Patients often describe PEM as a "crash", "relapse", or "setback". [6] Symptoms typically begin 12–48 hours after the triggering activity, [5] but may be immediate, or delayed up to 7 days. [6]
The alleged mechanism for the feeling of a crash is correlated with an abnormally rapid rise in blood glucose after eating. This normally leads to insulin secretion (known as an insulin spike ), which in turn initiates rapid glucose uptake by tissues, either storing it as glycogen or fat , or using it for energy production.
A man taking a nap in the spring. Springtime lethargy is the state of fatigue, lowered energy, or depression associated with the onset of spring. Such a state may be caused by a normal reaction to warmer temperatures, or it may have a medical basis, such as allergies or reverse seasonal affective disorder. [1]
Muscle fatigue is when muscles that were initially generating a normal amount of force, then experience a declining ability to generate force.It can be a result of vigorous exercise, but abnormal fatigue may be caused by barriers to or interference with the different stages of muscle contraction.