de·sen·si·tize
dēˈsensəˌtīz/
verb
past tense: desensitized; past participle: desensitized
make less sensitive.
"creams to desensitize the skin at the site of the injection"
make (someone) less likely to feel shock or distress at scenes of cruelty, violence, or suffering by overexposure to such images.
"people who view such movies bec