Today's cool fact of the day is that you shed your entire outer skin layer every two to four weeks. Those dead skin cells that pile up in your home or office actually may have a purpose. Turns out that scientists discovered squalene, one of the lipids or fats produced by your skin that is found in high concentrations in your dead skin cells, it actually helps to indoor air ozone and increase air quality. I guess you should use a loofa all over the place in your house and just swim in dead skin cells, except that's really disgusting. That was a good cool fact of the day, I got to say.