Some Paralympic athletes with spinal injuries use a technique called ‘boosting’ to improve their performance. This uses pain or discomfort to make their blood pressure jump higher – even as extreme as intentionally breaking a toe. This triggers autonomic dysreflexia (AD), which can be dangerous, and could even cause a stroke. The technique is banned, and will be monitored by checking blood pressure in people who look unwell.

Paralympic Games 29 Aug – 9 Sept

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