DR MARK GORDON

WHO IS DR MARK GORDON?

Dr Mark Gordon is a US endocrinologist whose work on traumatic brain injury and hormonal recovery has made him one of the more debated voices in functional endocrinology. His clinics treat post-concussion syndromes, age-related hormonal decline, and the cumulative effects of athletic and military head trauma. For Roadman listeners interested in the male hormonal landscape after 40, the connection between cycling crashes and long-term health, or the realities of testosterone and recovery, his perspective raises questions worth hearing — though several of his framings remain debated within mainstream endocrinology, and his protocols should be considered alongside conventional clinical guidance.

KEY IDEAS

The major positions Gordon is known for in cycling and endurance sport.

• →Traumatic brain injury can disrupt the hypothalamic–pituitary axis and produce long-term hormonal deficits.
• →Cycling crashes that produce concussion deserve the same workup as other TBI events — most athletes do not get it.
• →Free testosterone in masters athletes can be a more useful marker than total testosterone for performance and recovery.
• →Hormonal optimisation is not the same as anabolic abuse — but the line is poorly drawn and easily abused.
• →Sleep, stress, and energy availability are upstream of most hormonal issues for masters cyclists.