Why giants existed?

I was really fascinated when i read about the findings on giant human skeletons a few years ago and did some research. Apparently some of them were hoax but according to some, there WERE giants that have walked this earth and i'd have to agree with them. and so, I have come up with a theory as to why these giants cease to exist. 1. in the ancient times, there were no such things as pollutions, be it air ,water ,or soil, like we do now. I have done some research and found out that pollution CAN effect on human growth! so, back in those days, pollution wasn't even around yet, and so, their height was probably 10, or 12 feet tall and that would probably be considered an average or 'normal' size for people back then. But as time evolved, the environment became different and so they probably started shrinking to as what we see now, normal human sizes. Another factor as to why they were giants is possibly 2. because of their way of life, mostly on what they consume. back then there were rarely oily or unhealthy foods and so they would rely on organic foods such as fruits, vegetables, and animals to eat. and since there were no such things as chemical contamination, they were probably pretty healthy as to why they were, what they were.

These are just theories so keep an open mind. if you guys have any other suggestions, please comment. Thanks : )

Theory #3

The Mayan theory. Of course, this theory has nothing to do with the location of Atlantis, but it DOES have it's connections. i will begin with this, it is said that during the destruction of Atlantis, only few survivors managed to escape and ended up in the Mayan civilization. it has been theorized that the survived Atlanteans lived with the Mayans, and even taught them of new technologies and changed their way of life. I would have to agree with this theory. i hve done some comparisons between the Mayan language and the Atlantean language and found some interesting stuff. The Atlanten's number is almost the SAME as the Mayan numeric. here are examples of the similarities between the Mayan and Atlantean numbers.

As you can see, those numbers are somewhat similar. but then again, the Atlantean numbering WERE based on one language expert, Marc Okrand. any comments?

Theory #2

okay, moving on to my second theory. in my first theory, i mentioned that the city that most ppl know as "Atlantis" may actually be the city of Soddom and Gomorrah. however in THIS theory, where Atlantis is "Atlantis", the so-called empire with vast technologies. i have come up with a theory that is associated with the Bermuda Triangle. yes, many experts have come up with this particular theory, but mine MAY seem to differ from the rest.According to Plato's Critias, the Atlanteans source of energy and power comes from crystals, that perform different functions depending on the crystal.Before coming up with this theory, i have done a bit of research about crystals and its functions, and it turns out that there are crystals with electromagnetic function. so this is where my theory comes in: "Atlantis" MAY be located in the Bermuda Triangle. if we recall the mysteries of sunken ships, missing planes and especially the mystery of Amelia Earhart's dissapearance when passing through the Bermuda Triangle.i have concluded that if the "Atlantis'" electromagnetic crystals were inside the triangle, and still active,thus pulling the giant metal objects towards the abbys, it could POSSIBLY be the cause of the dissapearances thats been going on the past. but then again, the Bermuda Triangle could be one of the locations where the remnants of "Atlantis" was scattered during some natural disasters thousands of years ago. then again, its just my theory -hope to hear from you guys soon-

Theory #1

Here is my first theory on the possible location of Atlantis. If u know the story of Prophet Lot, or Lut, which we called him in Islam, God turned the world upside down because Lot's tribe practices sodomy, the land, where God turned the world upside down was called Sodom and Gomorrah. it is said to have been swallowed in by the sea, which is the black sea. i have made some research where sodom and gommorah was never found, and thats when my theory comes in, the lost city, which we called 'Altantis', MAY possibly be the city of sodom and gommorah. and MAY be located under the black sea after all.

According to plato's writing about atlantis, the atlanteans were proved to have advanced technologies, some say that it is way better than the technology now. is there any proof to support plato's theory? if so, how? if there WERE some artifacts or proof of atlantis' existence were found in the altlantic ocean, it could POSSIBLY be the remains of the city of sodom and gommorah. some say that some atlanteans managed to escape from atlantis, where it is said that atlantis was swallowed in the atlantic ocean. some resource stated that the Mayans were the ACTUAL atlanteans, the same atlanteans that managed to escape from the atlantis' disaster? i have studied the history of the Mayans, and it has a few similarities to it. could this also be true? going back to my theory, i believe that the lost city of atlantis, MAY be located somewhere else, other than the atlantic ocean, maybe in the black sea perhaps?

-so here is my first theory, hope to get some feedbacks and hopefully some info that might help me with my research.- Thanks