There has been substantial scientific progress in EHE-related research and sufficient development of the EHE community in a decade to warrant an entire section covering a variety of topics where our understanding has improved over the past several years. These are just my opinion, not medical advice (of course). I also hope to include a wide variety of sources and especially the voices of key people in our community. I believe this section will continue to develop over time (that's the nature of evolution) and I am sure it will be interesting. Please stay tuned.