How I Script Short-Form Health Videos That Actually Get Watched

Why retention is the only metric that matters

On Reels, Shorts, and TikTok, the algorithm asks one question: did people stay? Everything else — likes, comments, shares — is a downstream effect of retention. So I script every video for the last second, not the first.

The 4-beat short

1. Hook (0–2s) — a question or claim sharp enough to interrupt a scroll. Examples: "You've been drinking water wrong." / "This 30-second test predicts your blood sugar."
2. Tension (2–8s) — explain why the obvious answer is wrong, or why this matters now.
3. Payoff (8–25s) — the real, simple answer, with one visual or example per sentence.
4. CTA (25–30s) — a soft next step: "Save this," "Follow for more," or a question that invites a comment.

A real script template

Hook: "Most people get this wrong every morning."

Tension: "They think coffee on an empty stomach is fine. It's actually doing this…"

Payoff: "Eat 5 grams of protein first. Your cortisol drops, energy lasts longer, cravings disappear by 11."

CTA: "Save this for tomorrow morning."

Pacing rules

• One idea per sentence. No subordinate clauses.
• Visual change every 2 seconds. Cut, zoom, caption, b-roll — anything.
• Caption every word. 80% of viewers watch on mute.
• Sound effect on every cut. Subtle, but it doubles perceived energy.

What kills retention

• A slow start ("Hey guys, today I want to talk about…")
• A logo intro
• More than 3 seconds without a visual change
• A CTA before the payoff

How I test

Every week I publish three versions of the same idea with different hooks. After 7 days, the winning hook becomes a template I reuse for the next month. Hooks compound — scripts don't.

The mindset

Short-form isn't shorter long-form. It's a different format with its own grammar. Learn the grammar, and you stop guessing.

Write for retention. Cut anything that doesn't earn the next second. Ship daily.