Jednak je to pravda, cyklozmrdi su chori vzdy najskor. Medicinske clanky s vysokym impact factorom si hladaj sam, ja tym kokotinam nerozumiem. Tu mam popularno-naucnu clanok:
https://www.active.com/cycling/articles/what-you-need-to-know-about-cycling-and-the-flu-season


It shouldn't be a surprise that a sedentary lifestyle and lack of physical activity is a major predictor of increased risk for infections and illnesses. What may be really galling to athletes is that they are often at similar, if not greater, risk for infections as the couch potato. The achieve the right balance of exercise and rest, moderate levels of physical activity and fitness is recommended during the peak seasons—similar to that of a recreational athlete exercising moderately three times a week.

TL;DR...

While most of us are not doing exercise to such extremes, the take home message is that most of us should consider ourselves athletes in the game of life. Corporate athletes can often face much more total stress than even top professional athletes. Even 10 to 12 hours of training a week, when squeezed in alongside a demanding job and family responsibilities, can become astronomical. It's good advice for many of us to always be on the lookout for ways to actively increase our recovery and decrease our stress.