In '93 I was pulled from World MTB X-country Champs track due to sports-induced hypervent. It occurs in many & is restricting/scary. Excess exercise with anxiety about competition. Is not a heart-attack or asthma - know ur symptoms. https://t.co/3waVdU
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@allan_ronnie @Cyclingnewsfeed for the rest there's https://t.co/9l49rbYkCr https://t.co/sPVJFb1mZr
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@daveneal1603 @danroan or their training conditions can bring it on... https://t.co/9l49rbYkCr https://t.co/sPVJFb1mZr
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