Melinda French Gates explains why she tracks her blood work in a spreadsheet

Melinda French Gates told Norah O'Donnell on "Healthful" that she's been tracking all her blood work in a spreadsheet "for a very long time." "It's easier than when I sit down with my doctor and she's pacing through the computer to look at it. I'm like, here's the spreadsheet," French Gates said.

Melinda French Gates told Norah O'Donnell on "Healthful" that she's been tracking all her blood work in a spreadsheet "for a very long time." "It's easier than when I sit down with my doctor and she's pacing through the computer to look at it. I'm like, here's the spreadsheet," French Gates said.