Next time someone asks how old you are, answer "14 billion years". It doesn't matter what your birth age is. Because that's the correct age of everyone on earth from newborns to centenarians. Yes, we are all age mates. Elementally. Let me explain.

Let's start from the Big Bang. Immediately after the Big Bang( estimated to have occurred about 14 billion years ago), hydrogen was formed. This is the source of all hydrogen to ever exist. Then hydrogen ions fused to form helium. These two elements make up 99% of the the universe. The rest of elements were formed from these two.

Now the human body is mostly composed of water, which is mostly hydrogen. Not only that, hydrogen was the raw material for every other element in the body. So it is safe to say that we are made of hydrogen. Which is 14 billion years old. Which is your actual age.