We are delighted to share the second issue of PhysiOdyssey: Exploring Human Physiology, and we look forward to moving towards a regular six‑monthly publication rhythm as our community continues to grow. Once again, we have been impressed with the range of voices and styles in the submissions we ve received and are excited to bring you a selection that really showcases the scope of physiology as a discipline and its impact on our daily lives.

In this issue, you ll find historical perspectives that have shaped modern understanding and speculative pieces that imagine the future of physiology. You ll be immersed in the world of research and asked to consider what happens when healthy physiological function fails. From a light-hearted look at how our blood clots in Coagulation Chaos, to an insightful view into neonatal surgery in The Role of Adrenaline, each article highlights a different way in which our bodies work, adapt and sometimes surprise us.

While compiling this collection, we were also delighted to run our first haiku competition, organised by our student intern, Katie Lang. The competition celebrated physiology through concise and creative expression. The results are on our website, and selected entries from this competition will be featured in Issue 3.

One of the aims of PhysiOdyssey is to show that physiology is not confined to laboratories and textbooks; it affects everyone, old and young, city dwellers and countryside wanderers, office workers and astronauts. It is part of our day-to-day lives and our adventures, and can inspire stories, reflections and creative interpretations.

Contributors to this issue come from science, medicine, arts, and other backgrounds, helping to make this collection so rich and engaging. We are grateful to them all for sharing their perspectives and experiences, and to our readers for continuing on this journey with us. If this issue sparks an idea of your own, we encourage you to submit to a future edition. Surprise us and help us explore human physiology in a new way.

Shona and Katherine