PMC (2025) multinational study: 2,086 participants (UK, USA, New Zealand) examining how sleep quality, physical activity and dietary choices predict psychological wellbeing — inter-individual and intra-individual.
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Multiparameter monitoring as the standard
One dataset incorporated Fitbit wearable physical activity measurements alongside self-reported measures, demonstrating the effectiveness of multiparameter monitoring.
Body composition shown as a clean chart on a tablet beside a smart scale; neutral premium background; no faces.
Objective wearable data added significant predictive power.
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Intra-individual prediction: variability matters
Intra-individual analysis — how variations in a person's behaviour over time correlate with their wellbeing — is clinically more relevant for personalised medicine.
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The Digital Twin is built on this principle: comparing your today with your yesterday.
The integrated triad: impossible to optimise one pillar without the others
Bright kitchen of an Alpine chalet: a smart bioimpedance scale on a wooden floor, natural morning light; no faces.
Sleeping well improves motivation to exercise. Exercise improves sleep quality. Adequate nutrition supports both. Intervening on only one pillar is incomplete medicine.
The Digital Twin as the triad infrastructure
Body composition shown as a clean chart on a tablet beside a smart scale; neutral premium background; no faces.
The first platform simultaneously monitoring the three pillars in a single daily-updated biological profile — showing how the three parameters mutually influence each other in your individual biology.
A table with a spare Mediterranean breakfast in natural light, measured portions; crisp detail, no faces.
PMC Multi-dataset Study (2025) — https://pmc.ncbi.nlm.nih.gov/articles/PMC12385438/ · pmc.ncbi.nlm.nih.gov
On the same topic
- 18 Months, Wearables and Diet: Your Sleep Quality Predicts How Well You Will Follow Your Diet.Study on 156 overweight adults: sleep quality measured with wearables predicts adherence to dietary recommendations and weight loss over 18 months.
- 2 Days Less Sleep. Ghrelin +28%. Hunger +24%. Your Body Is Sabotaging Your Diet.Two days of reduced sleep increase ghrelin by 28% and hunger by 24%. The landmark randomised crossover study by Spiegel, Tasali and Van Cauter.
- 21 Studies. 2,250 People. One Conclusion: Short Sleep Systematically Elevates Ghrelin.Meta-analysis on 21 studies and 2,250 participants: ghrelin systematically higher in short sleep groups. The definitive data on short sleep and obesity risk.