Draining the Voltmeter: A 5 AM Lesson in Under-Fueling and Autonomic Collapse

Forget Your Software’s Threshold: Your Physiology Rewrites the Rules in Real Time We’ve all been conditioned to treat our threshold like a monument carved in stone. Your bike computer, your smartwatch, or your coaching software gives you a single, static number—say, a functional threshold power (FTP) of 250W or a threshold heart rate of 162 […]