Starcast Join the waitlist
The Dr. Gabrielle Lyon Show

The Dr. Gabrielle Lyon Show

ED Predicts Heart Attacks Better Than Chest Pain: The 2 Tests to Ask For | Dr. Tobias Kohler

Sep 22, 2026 · 1h 12m

Coming soon to iPhone. Already have it? “Listen in Starcast” takes you straight there.

On this episode

About this episode

Your testosterone number matters at every age, but most men never learn what theirs should be. Mayo Clinic urologist Dr. Tobias Kohler explains why ~500 is the target, why 1,000 is already running hot, what 2,000+ does to the heart, and why a randomized trial found lifting without steroids beat steroids without lifting. Plus: the blood test that catches heart risk your cholesterol panel misses. Dr. Kohler returns for his second appearance (his first, on erections, testosterone and muscle mass, is one of the most-watched episodes in the show's history). This time: why men's longevity is roughly 50 years behind women's; the Princeton IV consensus he co-chaired, which treats ED as one of the…