Improved post-COVID-19 exercise tolerance and fatigue
COVID-19 is an infectious respiratory tract disease caused by SARS-CoV-2. This coronavirus can also attack other systems (e.g. the cardiovascular system) or induce an increased immunological response, leading to elevated proinflammatory cytokine levels (e.g. TNF-α, IL-6). In the course of COVID-19, the inflammation of the vascular endothelium has also been observed.
COVID-19 is not a short-lasting infection, with its far-reaching consequences including: chronic fatigue, exertional dyspnoea, myocarditis, brain fog, mental disorders, hair loss.