 Dysphagia is considered the most prominent complication to HNC and its treatment, affecting physical function and quality of life. Post treatment dysphagia occurs in a significant proportion of patients and results from multiple factors such as xerostomia, taste loss, decreased sensory function, fibrosis and trismus. Disuse of swallowing muscles due to acute radiation effects or tube feeding can contribute to decline in swallowing function. Often, difficulties in swallowing and mouth opening are presenting features of HNC even at the time of diagnosis. To reduce these problems, patients may do a series of exercises before and during treatment to promote strength, mobility, and endurance of base of tongue, pharyngeal constrictors, and suprahyoid strap muscles. Although no definitive trials have yet been carried out, small randomized controlled trials RCTs and observational studies investigating pre-treatment swallowing andor mouth opening exercise programs show promising benefits. Further, the few studies of resistance and cardio training on functional capacity in HNC patients are generally promising with medium to large effects on fatigue and physical function measures. For weight loss it seems as if progressive resistance training PRT is able to almost reverse the loss of LBM in HNC patients. 