// MOVEMENT

Movement

Muscle physiology, mitochondrial biogenesis, BDNF, cardiovascular adaptation

Exercise isn't about burning calories — it's a molecular signaling cascade. Muscle contraction activates AMPK and upregulates PGC-1α, the master regulator of mitochondrial biogenesis. This increases fat oxidation, insulin sensitivity, and releases BDNF — a protein that directly enhances neuroplasticity and memory.

Don't guess. Understand.

Every week, we pick one study that changes how you think about your health. We explain the biology, grade the evidence, and tell you exactly what it means — years before your doctor hears about it.