I have been training (with breaks) for many years, but have just started HST. I was working on the 15's when I got the flu and was simply too sick to train. I have only 1 session of 15's to do. In this case, what should a person do? Trained super hard on Wednesday 19th and now aim to start again tomorrow Friday 28th. I still have a slight cough, but it's nothing really. I had assumed it would be best to have 2 sessions on the 15's before continuing to the 10's. But.......assumption is the mother of all screw-ups. I want to get the best from this system and sickness does happen. What is the HST solution for sickness breaks? Any general rules to consider?