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In this brief fitness video, the speaker addresses the common sensation of lactic acid “burn” during intense exercise and explains that its onset can be delayed slightly. Using the example of a 400‑meter runner who typically feels the burn at 300 m, the speaker suggests it might be pushed to around 350 m by employing buffering supplements—specifically sodium bicarbonate or beta‑alanine. These agents act as buffers to temporarily neutralize excess hydrogen ions, allowing the athlete to sustain effort a bit longer. The video ends with a call‑to‑action, asking viewers to comment the word “acid” to receive specific dosage recommendations.

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