Alex Nairn

Co-Founder & Lead Physiotherapist

Helping you move from “fixing” to flourish. As lead clinician at Health by Science, I help people recover through physiotherapy in Edinburgh that focuses on long-term strength, not just symptom-chasing.

Start with a movement mot

Specialist providing technical movement cues and clinical advice to a personal training Edinburgh client at our Leith lab.

Portrait of a professional Health by Science coach providing positive reinforcement and encouragement during a clinical gym session.

Practitioner explaining evidence-based treatment plans and injury recovery timelines during a patient consultation in Leith.

Focused patient intake and clinical assessment session within the professional treatment room at Health by Science Leith.

Physiotherapy is more than just a 55-minute appointment.

I started my journey in professional football, but a career-ending injury taught me the true value of rehabilitation.

At Health by Science, I’ve applied those lessons to our physiotherapy in Edinburgh, creating a biopsychosocial approach to care.

We don’t offer passive “fixing”. Instead, we use hands-on therapy to “open a window” of reduced pain so we can get to work on the real solution: building your long-term independence and confidence.

Raising the standard of care

Responsible for the clinical development of every Physiotherapist at Health by Science.

Clinical Mentor: I personally oversee the training of our physiotherapy team, ensuring every practitioner utilizes our assessment-first, evidence-led framework.
The Continuum Principle: I work alongside Ross to ensure there is no “gap” between finishing rehabilitation and starting personal training in Edinburgh.
Whole-Person Specialist: I train our team to look beyond the injury site to understand how sleep, stress, and lifestyle impact your recovery.

A physiotherapist in edinburgh coaching a man through a floor-based rehabilitation exercise using cones for positioning.

Clinical physiotherapy edinburgh assessment of a plank progression with manual cues to improve lumbo-pelvic stability during injury rehabilitation.

Clinical assessment of shoulder range of motion and joint stability conducted by a professional Health by Science specialist.

Health by Science specialist providing hands-on manual therapy for lower back pain management in our Edinburgh clinic.

Specialised clinical care

Reassurance and clarity for those managing complex conditions.

Pain Management & Injury Confidence: Helping you move without fear, whether you’re returning to running or simply want to walk pain-free.
Post-Surgical Rehabilitation: Structured, safe progression following major orthopedic procedures.
Complex Health & Chronic Pain: Individualised pacing for those navigating long-term health challenges.

Professional credentials

Co-Founder, Health by Science
HCPC Registered Physiotherapist
MSc Physiotherapy, Napier University
BSc Sports and Exercise Science, Napier University

Private clinical consultation between a Health by Science specialist and a patient to discuss data-driven rehabilitation goals.

Health by Science coach providing clinical feedback and encouragement during a rehabilitation-focused personal training Edinburgh session.

Clear diagnosis. Confident recovery.

Finally a Clear Plan

After months of frustration and conflicting advice, Alex gave me the most comprehensive review I’d had. He helped me understand what was going on and what I should and shouldn’t be doing. For the first time, I felt hopeful about resolving my pain.

— Laura Ball

Reviewed on Google

Thorough and Reassuring

Alex was really thorough and helped speed up the recovery of my torn hamstring. Knowledgeable, professional and approachable. I would definitely recommend Health by Science.

— Claire Murray

Reviewed on Google

Evidence-Based and Insightful

It’s clear Alex really knows what he’s talking about. He answered all my questions and backed everything up with evidence. Exactly what you want from your physio.

— Sonia Kheda

Reviewed on Google

Clinical movement instruction for a medicine ball slam to improve explosive power and functional coordination in our specialised Leith gym.

Specialist providing technical feedback on overhead medicine ball positioning to ensure optimal shoulder mechanics and core engagement.

Ready to understand your body?

If you are in pain and need a clear roadmap back to the activities you love, your journey starts here. We’ll use our Assessment-First approach to determine exactly what your body is ready to handle right now.

If you’re unsure where to start, our physiotherapy team in Edinburgh can guide you.

Book a physiotherapy assessment

Free online physio advice call