This text is missing some spaces, please add them: *Jawstiffness:Radiationcanaffectthechewingmusclesandmakeitdifficultforyoutoopenyourmouth.Youcanpreventorreducejawstiffnessbyexercisingyourjawmuscles.
* Jaw stiffness: Radiation can affect the chewing muscles and make it difficult for you to open your mouth. You can prevent or reduce jaw stiffness by exercising your jaw muscles.