Kenneth Shinozuka is a 15-year-old who loves his grandfather. Sadly, Kenneth’s grandfather, like 5 million other Americans around the county, suffers from Alzheimer’s disease. And like 60% of Alzheimer’s patients, Kenneth’s grandfather has been known to wander off on occasion. These scary and “very real” occasions inspired Kenneth to do some serious thinking about a solution. What he came up with was a sock with a sensor that could change the lives of millions of people. Check it out: