Macros Explained: Where the Protein, Carb and Fat Targets Actually Come From (2026)
Macro targets traced to source: the government AMDR bands and 0.8 g/kg RDA versus 40/30/30 and the 1 g/lb gym rule, and...
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How Much Water Do You Actually Need? The '8 Glasses' Rule vs the Evidence (2026)
No study ever backed '8 glasses a day.' What NASEM, EFSA and Singapore's HPB actually publish, why coffee counts, and ho...
Sleep Cycles and the 90-Minute Rule: What the Science Actually Says (2026)
Two NIH institutes give two different sleep-cycle lengths, and neither is a fixed 90 minutes. What the primary sources r...
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Heart-Rate Zones: What '220 Minus Age' Gets Wrong (2026)
The wall-poster formula for max heart rate has a thin research pedigree. We trace every number to its source and show wh...
BMI, BMR and TDEE: What the Numbers Mean — and Why Asia Uses Different Cut-offs (2026)
What BMI, BMR and TDEE actually measure, the equations behind them, and why Singapore and Malaysia flag risk from BMI 23...
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