Michalina Pastuszka et al. 2026. IMPACT OF LONG DURATION HIGH-INTENSITY PHYSICAL EXERCISE ON SMALL AND LARGE INTESTINAL FUNCTION IN COMPETITIVE ATHLETES – A LITERATURE REVIEW. International Journal of Innovative Technologies in Social Science. 2, 1(49) (Mar. 2026). DOI:https://doi.org/10.31435/ijitss.1(49).2026.4728.