Why and how hiccups arise.is it necessary for us,if yes then how and why it's necessary to us.
There is a sheet of muscle under your lungs called the diaphragm. It’s very important, even though you don’t normally know you are using it. When you breathe in, this muscle pulls your lungs so they can fill up with air.
When you get hiccups, you are getting involuntary spasms in this muscle. This makes you take in the air really fast, like a super quick breath. The air rushing in shuts your vocal folds, causing the “hiccup” sound. Sometimes you hiccup once, other times for a few minutes. In very rare cases, they can last a very long time.
Hiccups are usually started by eating or drinking too much and too quickly – particularly with fizzy drinks. This can stretch and upset your stomach, causing hiccups as the diaphragm contracts. Sudden changes in temperature or getting too excited might trigger this too. These hiccups are normally over quickly. However, if someone has an illness in their brain, nerves or tummy, they might get hiccups often or for a long time.