We got bib numbers to the 2021 Tour De No Pants before talking about the physiological importance of practicing playfulness in training, an update on the journey with family planning (we are at the fun part!), why walking is trail running, and key principles for thinking about training heading into 2022 (particularly with the distribution of intensity). Science is sometimes sexy metaphorically, and on this episode it's also sexy literally. Happy holidays everyone, we appreciate you all so much! WOOHOO! WHOOP promo code for 15% off all memberships: SWAP join.whoop.com/swap