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Longevity Atlas
Body compositionT-score / kg

DEXA (muscle, fat, bone)

Optimal

T-score > –1; ASMI men > 7.0, women > 5.5 kg/m²; visceral fat < 1 kg

Why

One scan for the three “structural” ageing markers: bone density, appendicular muscle mass (sarcopenia) and visceral fat.

How often

Every 2–3 years after 50; women after menopause.

What moves it

Loaded strength training, protein, D3+K2, jumping (bone), calorie deficit (visceral fat).

Last reviewed: 6 September 2026

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