In my latest research, I discovered that while gas and acidity can cause significant discomfort, they don't directly lead to cardiac arrest. However, severe heartburn or acid reflux can mimic symptoms of a heart attack, causing panic and stress, which in extreme cases could contribute to heart issues. It's crucial to differentiate between heartburn and heart symptoms, so don't hesitate to seek medical advice if in doubt. Keep in mind, maintaining a balanced diet and healthy lifestyle can prevent both acidity problems and heart diseases. So, while there's an indirect link, gas and acidity don't directly cause cardiac arrest.