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Hands Shaking After Exercise? The Fasted + Caffeine Combo That Triggers It

February 11, 2026 — Jaren

Man in his 40s experiencing hand tremors after a fasted workout while working at a desk with coffee nearby.

Hands shaking after exercise can feel like a heart problem, especially after 40. In my case, it wasn’t palpitations. It was a fasted workout layered with caffeine, delayed refueling, and metabolic stress. Here’s what actually happened and what fixed it.

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From the CAS Field Guide (YouTube Shorts)

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