Anne Truong MDMen's Sexual Health Doctor

Why Erections Start in the Brain, Not the Body 🧠 #MensHealth #ED

13 May 2026 · 1 min

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In this brief segment, Dr. Anne Truong explains that sexual arousal and erections originate in the brain rather than the genital area. She emphasizes that without brain‑initiated arousal, no physical response occurs. Mental states such as depression, apathy, anxiety, worry, and stress can inhibit arousal. Conversely, the five senses—sight, smell, taste, hearing, and touch—provide sensory input that triggers the brain to release chemicals that lead to erection. The message is a concise, conversational warning that psychological and sensory factors are key drivers of sexual function.

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And a fuck starts in the brain, guys. It doesn't start down below the belt. It starts in your brain. And because it starts with arousal first. If it doesn't start in here, nothing's gonna go below the belt. Just know that. Because if you're depressed, if you're apathetic, if you're anxious, if you're worried, if you're stressed, it's gonna be hard for you to get an fuck. And you get aroused by the 5 senses that you have, which feed signal to your brain. What are the 5 senses? What you see, eyes, nose, what you smell, what you taste, what you hear, and what you touch. These are the senses that feed into your brain that will bring that arousal up, the release of chemical that gets released out.