aid and CPR for twenty-two years. Over the years, he has noticed a gap: there is no truly effective way to rescue oneself when choking and no one is there to help.
He therefore developed a technique that, according to him, works quite well. Its origin is unexpected: it dates back to the 1980s, when he practiced boxing. His coach
had him repeat this exercise to strengthen and toughen his abdominal muscles. Decades later, he felt it could be used for a much more practical purpose and adapted it to
