The Cellune Journal

Evidence you can use.

Clear, cited answers on healthspan, personalised supplements, wearables and biomarkers, written for people who want to stay well for longer.

Longevity
Supplements
Biomarkers
Genetics
Wearables
Sleep
Women’s health
Family health

A smiling woman in her seventies rests at the edge of a swimming pool while her grandson waves in the background.

Featured · Longevity3 min read

What is healthspan? How to add healthy years, not just years

Healthspan is the number of years you live in good health, free from serious chronic disease and disability. Lifespan is simply how long you live. Globally, people now spend an average of 9.6 years of life in poor health, and in the US that gap reaches 12.4 years. Closing it is the goal of modern longevity care.

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A generic supplement bottle spilling identical tablets beside neatly arranged personalised daily sachets and capsules.

Supplements4 min read

Personalised supplements vs multivitamins: what the evidence says

Do multivitamins work? Are personalised supplements worth it? We look at the largest reviews and trials on vitamins, the evidence for personalised nutrition, and how to choose supplements based on your biology.

A relaxed man in his forties has a blood sample taken in a bright, modern clinic.

Biomarkers3 min read

The longevity blood panel: biomarkers worth tracking after 35

Which blood tests matter for long-term health? A clear guide to HbA1c, ApoB, lipids, vitamin D, ferritin, B12, inflammation and more, including what each marker tells you and how often to test.

A scientist holds a saliva collection tube with a teal cap next to a DNA sequencing plate in a bright lab.

Genetics3 min read

Can a DNA test personalise your supplements? What genetics can and can’t tell you

Nutrigenomics promises supplements matched to your genes. We explain what DNA can genuinely reveal about vitamin D, caffeine and folate, where its limits are, and why genes work best combined with blood tests.

A runner checks his smartwatch on a running track at sunrise.

Wearables4 min read

What is HRV? How to read your wearable’s recovery score

Heart rate variability (HRV) shows how well your body is recovering. Learn what a good HRV is, why it changes day to day, and how to use it to train and rest smarter.

A woman in her fifties does a kettlebell squat in a bright home gym, a glass of water on a bench.

Supplements3 min read

Creatine beyond the gym: muscle, memory and healthy ageing

Creatine is one of the most researched supplements available. Here is what the evidence says about creatine for strength, muscle, memory and ageing, how much to take, and who should be cautious.

A woman reads in bed under a warm lamp, a glass of water and capsules on her bedside table.

Sleep3 min read

Magnesium for sleep: does it work, and which form is best?

Magnesium is one of the most popular sleep supplements. Here is what clinical trials actually show, the difference between magnesium glycinate, citrate and oxide, safe dosing, and who should avoid it.

A woman in her late forties sits calmly on a sunny balcony after yoga, holding a cup of tea.

Women’s health3 min read

Perimenopause supplements: what the evidence supports (and what it doesn’t)

Black cohosh, soy, magnesium, vitamin D: which perimenopause supplements are backed by evidence? A clear, honest guide based on the latest menopause society guidance, plus what does help.

A woman laughs while cooking a colourful pan of vegetables and lentils in a sunny kitchen.

Family health4 min read

How to support your parents’ healthy ageing: an evidence-based guide

Worried about ageing parents? A practical, evidence-based guide to the habits that protect independence: strength and balance, protein, vitamin D, medication reviews, hearing and staying connected.

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