charles dc will describe his work investigating corruption in the police force and this weekend, sylvia fara discusses how our bodies react to fat . >> it's calories, it's actually an endocrine organ that releases hormones to that body depends on so basically, our play sites are linked to fat. there are people who have that status and some of those that are smaller, mice might have smaller things themselves. our goals are linked to that, our reproductive systems are linked to that and people who get to that level don't menstruate regularly. even the system, it's amazing there's so many systems in their body that are linked to healthy fat. >> afterwards airs on tv every saturday at 10 pm and sunday at 9 pm eastern. watch all previous afterwards programs on our website, booktv.org. >> the most interesting thing about this race is that it was the dumbest race possibly in american history. it was totally not. >> how does that compare to 2016. >> that one was dumber actually.which is sort of a heartwarming thing when you think about it. >> william henry harrison's race, just to say i was talking