why they're doing this and how. doesn't really matter. just a dog driving. >> all right. the facts of sitting too long can reduce your life expectancy. and researchers developed a sitting pad, sets off a loud beeping noise if you don't move for a long period of time. if you try to sit back on it before you have taken an extended break it will set the siren off again. really? >> i'm gone. >> you tied me to the chair. i'm only in my 60's... i've got a nice long life ahead. big plans. so when i found out medicare doesn't pay all my medical expenses, i got a medicare supplement insurance plan. [ male announcer ] if you're eligible for medicare, you may know it only covers about 80% of your part b medical expenses. the rest is up to you.