This guy's grandmother forgets to drink water because she has dementia, so she gets dehydrated, which makes the dementia worse. He created a candy for her that is 90% water. Dementia patients like to "pick" at things, and you can see here this is a good way for them to get water.

http://bit.ly/2UrBcRZ via /r/aww http://bit.ly/2GabE86