Best longevity, health screening and preventative medicine clinics in 2026

Dr Angela Rai, GP and Medicines Management Lead at The London General Practice, is an anti-ageing and longevity expert who has contributed her insight to Spear’s article on preventative medicine, health-screening and anti-ageing clinics for HNW clients.

With a Postgraduate Certificate in Anti-Ageing Medicine, alongside qualifications in cardiology and practice, Dr Rai takes an evidence-based approach to helping patients improve lifespan and healthspan. At the practice, she leads a longevity programme that assesses biomarkers including insulin sensitivity, hydration and vitamin status to estimate biological age.

The programme also examines chemical tags on DNA, which can be influenced by diet, sleep and exercise. Dr Rai explains that these findings may help patients understand how quickly they are ageing and identify lifestyle changes that could improve health.

However, she stresses that testing and supplements should not replace the fundamentals: movement, restorative sleep, nutritious food and stress management. Her approach combines screening with preventative care.