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Athalas Health and performance

Offering osteopathy, manual therapy, personal training, nutrition and funcitonal medicine in London and online. 

Most people don’t come looking for help because something suddenly broke.
They come because their body has been whispering for a while — and now it’s starting to shout.

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A recurring injury that won’t quite heal.
Headaches that creep in after long days.
A body that feels heavy, tight, or unfamiliar.
Fitness goals that never seem to stick, no matter how hard you try.

Food choices that have become a habit rather than meaningful choices.

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My work starts where quick fixes end.

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I offer osteopathy, manual therapy, personal training, nutrition support and functional medicine — in London and online — with each service available on its own or thoughtfully combined as a bespoke approach. What I actually do is help people understand why their body is struggling, not just how to push through it.

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Whether you’re dealing with sports injuries, chronic tension, headaches, stubborn weight loss, post-injury rehabilitation, or a general sense that your body isn’t working with you anymore, we look at the full picture. Not just muscles and joints, but stress, recovery, habits, movement patterns, workload, sleep, and lifestyle.

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Because bodies don’t exist in isolation.


They adapt to how you live.

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Some people come to me to get out of pain. Others want to rebuild strength, confidence, or fitness in a way that actually feels sustainable. Some just want to learn to eat healthy. Many realise along the way that what they needed wasn’t just treatment — but guidance.

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A holistic approach isn’t about doing everything at once.


It’s about knowing what matters most right now.

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Through hands-on therapy, targeted rehabilitation, intelligent training, and realistic nutrition and lifestyle coaching — offered individually or combined where appropriate — I help you reconnect with your body, reduce pain, restore function, and move forward with clarity instead of confusion.

This isn’t about punishment, perfection, or chasing someone else’s version of “healthy.”


It’s about building a body that supports your life — not one you’re constantly managing or fighting.

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If this sounds like it applies to you and would like to know more, click the link below or scroll for more info.
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My Services 
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  • Weight loss/management

  • Functional strength

  • Injury rehabilitation

  • Post-injury return to training

  • Movement quality & efficiency

  • Proper lifting and exercise technique

  • Mobility & stability

  • Joint health & resilience

  • Pain reduction

  • Injury prevention

  • Confidence rebuilding

  • Sustainable fitness

  • Endurance

  • Cardiovascular health

  • Sustainable weight loss

  • Metabolic health

  • Energy optimisation

  • Digestive health

  • Blood sugar balance

  • Inflammation management

  • Recovery support​

  • Nutrient optimisation

  • Habit-based nutrition

  • Lifestyle-aligned eating

  • Food education

  • Long-term behaviour change

  • Sports injuries

  • Musculoskeletal pain

  • Headaches & migraines

  • Neck & back pain

  • Joint dysfunction

  • Postural assessments

  • Chronic tension

  • Soft tissue manipulation

  • Mobility restoration

  • Functional movement support

  • Injury rehabilitation

  • Nervous system regulation

  • Pain management

  • Structural balance

  • Holistic osteopathic approach

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  • Root-cause assessment

  • Chronic condition support

  • Hormonal balance

  • Gut health

  • Immune support

  • Inflammation management

  • Metabolic function

  • Hormonal balance

  • Stress & nervous system regulation

  • Lifestyle & habit integration

  • Functional movement & posture support

  • Long-term health strategy

  • Systems-based approach

  • Personalised functional health

"I’d been struggling with shoulder pain for years, and after just a few sessions with Mari, I felt a huge difference. Their caring approach, professional techniques, and clear explanations made me feel completely at ease. I finally have my mobility back, and I’m so grateful.
Mari's knowledge extends well beyond osteopathy often during my treatments we would discuss nutrition and lifestyle tips which helped me on a path to become a fitter person, I'm definitely going to engage Mari' services as a Personal Trainer in the very near future, if your seeking someone to walk along side you supporting your health, fitness and injury journey I cannot recommend Mari enough."

Colin A.

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Contact

Mari Kortemaa

+07599832302

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