'And that's one of the things that's kept me doing this, will keep me doing this until I'm gone.

'My sister should not be dead,' Saget said.

He told CBS he 'can't watch what happened to my sister happen to more people,' adding that he hopes to show her 'that her life had a real purpose' through the work. Since his sister's death, Saget had been working with the Scleroderma Research Foundation, which seeks to find a cure for the disease. It is so healthy to laugh, and I'm out there doing it, and I know it's healing for people.' Saget joked he 'felt my hair kind of move,' and 'being an actor, that's a very important thing if your hair gets out of place.' When CBS' Jon LaPook noted Saget was injecting humor into such a serious conversation, Saget said, 'Humor is the only way my family survived.