A slower-moving input
Body composition is not a useful minute-to-minute signal. Longitudinal research in ageing men has associated weight change with changes in testosterone, making direction over time more informative than an isolated measurement.
That fits the role of Base: a view intended to move more slowly than today's temporary context.
The behaviors underneath the trend
Body composition is an outcome influenced by many actions. In a practical protocol, the executable parts matter most:
- Resistance training and movement
- Diet quality and energy balance
- Sleep and recovery
- Stress and consistency
Why the app does not need another daily score
The purpose is not to make every input compete for attention. Dr. Testo keeps four fixed Core actions visible, adds Body Composition as a periodic Personal Priority, and lets the longer history show whether the surrounding pattern is changing.