Why does chronic exposure to vibrating tools lead to 'vibration white finger' more readily than acute exposure?

💡 Explanation

Chronic vibration exposure causes endothelial damage within the digital arteries, which leads to excessive vasoconstriction, and eventually 'vibration white finger', because the signaling pathways become hypersensitive. Therefore, the vasoconstriction dominates rather than vasodilation, unlike acute exposure where the endothelium can still modulate normally.

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