"Soft drink" is the term which is internationally used, and which you will see on menus. Soda is used mainly in America to refer to soft drinks, whereas in Ireland and the UK people say fizzy drinks.

It's well explained here https://en.wikipedia.org/wiki/Soft_drink#Terminology

The most common term is soda.

Everything or most things that is done too often are harmful.

For example:

One cigarette will not kill you but I'm more than sure that the more cigarettes you smoke the more harmfull they'll be to your body. 

There is a difference between each soda, and some of them contain a lot of not healthy material.

Drink some fresh juice! That's my best advice and a soda from time to time it can help you cleaning your tarm, and destroying it if you drink too much. 

Regards!

This is a surprisingly difficult question to answer.

In the United States, "soft drink" is the best "formal" term. Incidentally, the t and the d run together when the phrase is pronounced. It is not "soft drink," it is not "softrink," it is not "sofdrink," but it is somewhere in between those three.

If someone asks "what does the Coca-Cola company produce?" the best answer is "Soft drinks."

Although in theory "soft" means "non-alcoholic," as opposed to "hard liquor," in reality it means a cold, sweet, carbonated beverage. Sweet cider, apple juice, hot tea, and iced coffee are not soft drinks.

"Soda" is understood everywhere in the U.S. but there are regional and generational difference in what word is actually <em>spoken</em>. 

In New England, "tonic" is frequently used, more commonly by older people, but it is still current. "What should I put on the shopping list for the group picnic?" "Better get a case or two of tonic." Everywhere else in the country, "tonic" would be understood to mean quinine water, a bitter kind of soda used as a mixer in cocktails... such as "gin and tonic."

In the Midwest, particularly Michigan, people call it "pop." "What would you like to drink? We have coffee and we've got milk and pop in the refrigerator."

With regard to health, I believe there's a real issue because it is a very easy way to consume an awful lot of sugar. In this regard, I think it's bad, but I don't think it's any worse than consuming the same amount of sugar in, say, hot tea or in any other way. 

We just say soda in the States.

LOL， you want to their parent wait for fracture investigation report. No way!