The Longevity Clinical Team
Qualified Committed Connected
At LONGEVITY we share a belief in proactive, state-of-the-art care that goes beyond symptom management and helps people take control of their healthspan.
Here, you’ll find experienced trusted experts united by a single goal: to help you live better, for longer.
Dr Lucy Scriven
MBChB MRCGP DFSRH PGDip Derm
Co Founder | Clinical & Managing Director
Dr Lucy Scriven is a medical doctor with over 25 years’ experience in the NHS, specialising in general practice, women’s health, and dermatology. She co-founded LONGEVITY to create the kind of proactive, personalised medical care she believes makes the greatest difference – care that focuses on protecting health and wellbeing before problems take hold.
Lucy is an accredited specialist in both primary care dermatology and women’s health, including advanced menopause care. She brings a deep understanding of the physical, hormonal and emotional changes that can affect women’s health throughout life, and is experienced in managing complex cases that require joined-up, long-term thinking.
Her perspective is also shaped by lived experience as a person with Type 1 diabetes since childhood, giving her first-hand insight into the importance of maintaining optimal health and taking a proactive approach to self-care.
At LONGEVITY Lucy’s aim is to give people the time, attention and tailored care they need to maintain vitality and confidence at every stage of life.
“Good medicine starts with listening, — it’s about understanding the person, their story, their pace of change and helping them stay well through every stage.”
Dr Peter Scriven
MBChB MRCS MPhil FRCGP
Co Founder | Clinical & Scientific Director
Dr Peter Scriven is a highly experienced medical doctor with over 25 years’ experience in the NHS, including academic surgical oncology and latterly a distinguished career in General Practice. He co-founded LONGEVITY to deliver a precise, personalised and preventative approach to healthcare – one that focuses on keeping people functioning at their best for as long as possible.
His published research in proteomics and cellular stress response pathways offers valuable insight into the same biological processes that influence ageing. Peter combines deep clinical expertise with scientific rigour and a passion for cutting-edge health care.
Peter’s clinical interests include mitochondrial health, metabolic performance, and the use of proven medical interventions to help slow or even reverse aspects of biological ageing. He brings together global research, advanced diagnostics and medical oversight to give patients access to options rarely found in routine care.
Alongside his clinical work at LONGEVITY, Peter is Head of Screening at Proteotype Diagnostics, a health sciences company developing advanced tests for the early detection of cancer.
At LONGEVITY his focus is simple: to help patients maximise their healthspan – supporting energy, clarity and resilience throughout life.
My motto in life… “Eligendum est quid Proximum” – Choices and Consequences
Join LONGEVITY for the very best consequences
Working alongside Drs Peter and Lucy Scriven is a team of respected scientific and clinical professionals, each bringing expertise that complements and enhances our longevity programmes.
Clemence Cleave
MSc RNutr
Nutrition Lead
Clemence (Clem) Cleave is an award-winning registered nutritionist with a master’s degree in nutrition and a focus on inflammation control, metabolic health and healthy ageing. As Nutritional Lead at LONGEVITY she designs highly personalised nutrition strategies that align with each patient’s diagnostic profile and health goals.
Her science-led, practical approach addresses hormonal balance, gut health, energy optimisation and disease prevention – ensuring that dietary interventions work in concert with broader clinical treatments. Clem works closely with the medical team to enhance the effectiveness of every LONGEVITY programme, translating complex nutritional science into practical, sustainable changes.
At LONGEVITY Clem’s focus is to help patients eat not just for today’s wellbeing, but to support the resilience and vitality they want to sustain over decades.
Dr Ashley Gluchowski
PhD
Strength & Conditioning Lead
Dr Ashley Gluchowski is an internationally renowned clinical exercise physiologist and strength training specialist. Her focus is on reversing power, strength and muscle loss and improving resilience in midlife and beyond. She holds a degree in medical science (with a clinical focus on physiology) and completed her PhD in New Zealand researching high-load resistance training in older adults.
Her work bridges exercise science and clinical application. She intricately weaves the latest research evidence with her clinical expertise and client preferences into a targeted, personalised programme for optimal results and long-term adherence.
At LONGEVITY, Ashley develops strength and conditioning protocols to improve joint health, metabolic health, cognitive health, bone density and functional independence – key components of preserving healthspan. Her goal is to help patients build and maintain the physical and psychological capacity they need to live life to the fullest.
Dr Steven Walsh
PhD
Sleep Science Lead
Dr Steve Walsh is Longevity’s sleep specialist. He earned his PhD at the Sleep and Circadian Neuroscience Institute at Oxford University, where he studied under the expert guidance of Professor Russell Foster, the UK’s foremost authority on sleep. His research focused on circadian rhythms and sleep cycles, exploring how our body clocks interact with light.
With nearly a decade of experience working night shifts as a firefighter, Steve brings a rare, first-hand understanding of the challenges of disrupted sleep. He has since applied his knowledge and expertise across safety-critical and high-performance industries including the NHS, BAE Systems, TfL and Network Rail, to help organisations tackle fatigue and enhance workplace wellbeing.
Combining cutting-edge sleep science with his own lived experience, Steve delivers practical, effective strategies to restore, support, and optimise sleep.
At LONGEVITY, Steve works with the clinical team to determine sleep chronotypes, develop tailored science-backed strategies to improve restorative sleep and to maintain optimal function when travelling or working in high intensity time pressured environments.
Dr Jelena Vulevic
PhD
Specialist Gut Health Consultant
Dr Jelena Vulevic is an independent scientific consultant who collaborates with LONGEVITY to provide expertise in gut health and microbiome-host interactions. She earned her PhD at The University of Reading where she explored how diet and gut microbial metabolism influence colorectal carcinogenesis.
With over 25 years’ experience in microbiome and gut health research, Jelena has worked with academic institutions and industry partners to translate scientific discoveries into practical, evidence-based solutions.
She works alongside the LONGEVITY clinical team to help shape approaches that optimise gut barrier function, reduce low-grade inflammation, and enhance metabolic and immune resilience, which are key pillars of healthy ageing. Her work bridges cutting-edge science with real-world application, positioning the gut as a central regulator of systemic health and long-term wellbeing.
“Resilience starts in the gut.”
Dr Chris Cleave
DCPsych CPsychol
Specialist Psychologist and Psychotherapist
Dr Chris Cleave is an experienced psychologist and existential psychotherapist whose professional orientation bridges the philosophical and the pragmatic. He holds a Master’s degree from The University of Oxford and a doctoral qualification from The New School of Psychotherapy & Counselling in London. Alongside his practice, he is an international #1 bestselling author writing and teaching widely on trauma, recovery and the human condition.
Chris’s method is rooted in existential-phenomenological thinking and the conviction that therapy is not simply symptom-reduction but re-engagement of purpose, agency and meaning. His work emphasises clarity of self-understanding, relational reconnection, and the embodied realisation of new possibilities.
At LONGEVITY Chris supports the psychological wellbeing component of our one and two year programmes. He focuses on the behavioural and existential factors that shape energy, resilience and long term stability and he works closely with the clinical team to build personalised strategies that help members sustain purposeful, disciplined and high functioning lives.
“Live in the world, not in your head.”
