I began the 40 day challenge with a power yoga practice. I’ve been exhausted lately from a battle of attrition with insomnia, which has left me hyper or lethargic, with causes unbeknownst to me. Yesterday was lethargy. I confirmed with my husband Ian after class that it was in fact an extraordinarily challenging class, so I feel good about simply getting through it. I think I’ll be mixing more hatha and less power into the next 40 days.