Today was speed intervals. Ouch. But gooood brain and body work! I was supposed to get into a high heart rate zone and maintain it for 3 sets of 10 minutes each. It is a heart rate zone I don't particularly like. It is that almost too hard place where you start to panic thinking you are going to fall apart if you go just 1 beat per minute higher for any longer and not sure you can stay there for the full interval. Well of course the first interval I felt panicky, able to maintain, but wondering if I would be able to do it 2 more times without falling apart. Second interval? Centered myself, tried to see how much I could relax myself and maintain that HR. Second interval was hard, but easier than first giving me confidence I might be able to complete the 3rd without falling apart. 3rd interval? Just really damn hard! .....But doable. Felt like I was working much harder to maintain that high heart rate and dipped a couple of times, but popped right back up and finished in zone. Hands on knees gasping after. And then....just for sheer torture....brief sprints! Just love my coach!!