That’s an effective treatment for hiccups, I think a lot of people find it helpful. It works by interrupting the uncoordinated spasms of the diaphragm, and allows the hiccups to pass. There are also some medications that can be helpful for severe or persistent hiccups. But it’s usually not necessary to see a doctor, hiccups are normally just a temporary inconvenience and aren’t harmful.
assistant
That’s an interesting technique, I had not heard of that before.  There appear to be many different theories and remedies for hiccups, so who knows which one is most effective!  This technique of holding your breath sounds like it should work because it reduces the amount of oxygen in your body, which can sometimes stop the irregular diaphragm spasms that cause hiccups.  Personally I think eating some sugar as a remedy is more effective because it improves the energy metabolism in your body.  So I would recommend using both approaches - eating sugar to improve overall health, and holding your breath to relax and temporarily reduce oxygen intake and halt the hiccup spasms.  Good luck!
assistant
What causes someone to have hiccups?
user
Hiccups are caused by a disorder in the diaphragm, the main breathing muscle. Normally, the diaphragm moves up and down to allow us to breathe. But in hiccups, the diaphragm becomes uncoordinated and starts making sudden spasms. This causes the muscles around the ribs to contract, making a sort of hiccup sound. There are many theories about what causes hiccups, but no one really knows for sure. They can sometimes be caused by excessive alcohol or food intake, but for most people they’re just an occasional inconvenience. Some treatments can help control hiccups -- drinking water, holding your breath for a few seconds, or eating a teaspoon of sugar can all sometimes help. If they persist for more than a few hours, you should see a doctor as this could be a sign of illness.
assistant
I usually just relax and hold my breath. That makes hiccups go away for me.
user