Why is Dr. Ian Smith in a freezing chamber that’s minus 250 degrees?! He’s breaking down some of 2018’s top new health trends, including drinkable collagen! Then, two fashion trendsetters are setting you up to rock this season’s styles at any size! Plus, meet two hilarious sisters who are eating their way through New York’s trendiest desserts! And Rach is serving up a one-skillet chicken dinner with veggies!