Quick Facts
| Author | Dr Jeff Foster |
| Narrator | Unknown |
| Runtime | 7h15m |
| Published | July 2, 2026 |
| Rating | 0.0 / 5 (2 ratings) |
| Categories | Health & Wellness, Aging & Longevity, Sexual & Reproductive Health |
| Format | Audiobook (Digital) |
| Platform | Audible |
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A myth-busting guide on testosterone from leading endocrinologist Dr Jeff Foster to help men feel stronger, healthier, and get back to their best selves. Testosterone: it’s a powerhouse hormone that fuels men’s energy, focus, mood, and vitality at every age. Yet despite its importance...
Why Listen to Optimal?
- Expert narration by Unknown brings every character and scene to life across 7h15m of immersive audio.
- Bestseller-quality story from Dr Jeff Foster.
- Free with your Audible trial — keep the audiobook forever even if you cancel.
- Perfect for commutes, workouts, and relaxation. Listen anywhere, anytime.
Download: Optimal
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Optimal by Dr Jeff Foster is an immersive listening experience. Performed by Unknown with a runtime of 7h15m, you can start with a free trial that you can cancel at any time. The audiobook remains yours forever, even if you end the trial.