Dublin organisation 'First Aid For Everyone' have said they have had a "huge surge" in interest for CPR training.
It follows Christian Eriksen's collapse last weekend during Denmark's Euros match against Finland.
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Siobhán says that it has led to a rise in interest in people wanting to know what to do in these situations.
She runs classes which helps people deal with cardiac arrest, chocking and much more.
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Siobhán ran through so brilliant First Aid tips with Rachael on The Saturday Social:
Catch The Saturday Social with Rachael Ryan weekly from 9am, only on 98FM