What's Up Docs?
What's Up Docs?

Doctors' Notes: Hay fever

May 19, 2026 • 21m

Summary

⏱️ 8 min read

Overview

Professor Stephen Till discusses hay fever in depth, covering its underlying biology, treatment options, and the impact of climate change. Till, who developed tree pollen allergy in his mid-40s, shares insights from his extensive research career and clinical practice. The episode explores everything from basic antihistamine mechanisms to advanced desensitization therapies, while addressing why hay fever seasons are expanding and how environmental factors influence allergic responses.

Professor Till's Journey into Allergy Research

Stephen Till's path into allergy research began unconventionally with a biochemistry degree, followed by a PhD in immunology focused on allergy at the National Heart and Lung Institute. After becoming deeply engaged with the field's controversies and translational research involving human immune cells, he recognized the need for clinical qualification. He then pursued medical studies at UCL, becoming the oldest student in his year, to build a comprehensive career in allergy research and treatment.

  • Till started with a biochemistry degree before pursuing a PhD in immunology focused on allergy
  • His PhD was highly translational, involving the study of human immune cell specimens
  • He later became the oldest medical student at UCL to gain clinical qualifications
" I think once you know what the kind of controversies are in that area and once you kind of get into the sort of detail about the science, you can become quite addicted to it. "

Finding Your Career Passion

Stephen Till's career path illustrates how discovering detailed scientific controversies in a field can become addictive, leading to a lifelong career dedication. His journey from biochemistry through immunology PhD to medical school demonstrates the value of combining different perspectives to tackle complex problems in translational research.

  • Getting into the details and controversies of a scientific area can be addictive

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