**Overview of Testosterone and Its Clinical Use**

Testosterone is the primary male sex hormone produced mainly in the testes (in men) and,
to a lesser extent, by the adrenal glands and ovaries (in women).
It plays key roles in:

- **Development of male sexual characteristics** (e.g.,
facial hair, deepening voice).
- **Maintenance of libido** and erectile function.
- **Muscle mass and

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Below is a high‑level walk‑through of the website’s architecture, user flow, UI components,
and content types that you can use to understand, prototype or extend
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whether it’s the landing page design, navigation logic, data model or future feature ideas.

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1. Top‑Level Page Map

Section UR

Coupon / Coupon Code

What it is:

A coupon (or coupon code) is a short string of letters,
numbers or both that you enter during checkout on an online store.
Once applied, the coupon automatically subtracts a set amount—or a
percentage—from your total purchase price.

Why you should care:

Instant savings – You get a discount right away, sometimes