Dramatic reduction of the stress hormone cortisol may be a factor influencing the duration of the post-COVID syndrome. This unexpected conclusion was reached by researchers from the United States.
A sharp drop in the stress hormone cortisol most strongly predicted patients who experienced the so-called post-COVID syndrome after COVID-19. The authors of the study identified several possible reasons for the persistence of symptoms of the coronavirus infection, which is observed in millions of people. Cortisol levels in the blood of those who suffered from post-COVID disorder were about half lower than those who recovered from covid or did not encounter coronavirus at all.
Denis Protsenko told how long the post-COVID syndrome can last
Researchers from the Yale School of Medicine emphasize that science still does not know the causes of the development of symptoms of post-COVID syndrome, which affects up to 20% of those who have had COVID-19. The US government has allocated more than a billion dollars to understand what causes post-COVID syndrome, and based on this information to develop any therapeutic strategies for the treatment and prevention of the disorder.
Post covid syndrome may not cause fatigue in children
One of the areas of research is the endocrine system, which produces hormones like cortisol that affect every part of our body, as well as inflammation and metabolism . Cortisol helps control mood, motivation, and fear. Reduced levels cause fatigue, muscle weakness, gastrointestinal disturbances, and hypotension. (READ MORE) 
Yale School of Public Health
Medicine
Yale Graduate School of Medicine University in New Haven, Connecticut