Post-operative morbidity is still high. Prehabilitation targets modifiable risk factors, which are clearly associated with post-operative morbidity and thereby enables preoperative optimization. It is a multidisciplinary and multimodal approach improving functional capacity (cardiopulmonary functional reserve), nutritional and psychological status of patients. Implementation of prehabilitation programs in practice is difficult (even in institutions which did not have problem with Enhalanced Recovery After Surgery). However, prehabilitation may lead to better patient outcomes, less post-operative compilations, shorter hospital length of stay and so lower costs.