Neuroplasticity

BDNF is a protein that the brain produces in response to exercise. It's become the subject of a veritable cult as the «neurotrophin of sport». New research from University College London, involving 23 sedentary adults, tested a simple promise. 12 weeks of cycling was supposed to raise BDNF levels in the blood. Baseline levels at rest did not change. Something else did change – and it's more interesting than the flashy headline...