Yes to OP. But, not in the sense of these silly novels. One must understand that there is tons of radiation on Earth. While this is toxic for normal humans, one out of every million or so has obtained a different type of DNA. While it is risky even for them, their cells can harvest the energy of these toxic substances. Which allows for their bodies to be exposed for a longer amount of time. Now the scary part about radiation is that it can change DNA. And, it's important to note that not all change is bad, most of it is though. But, even amount normal humans, there are cases were being exposed to this helped the human though it is important to note that even in the humans that have had some benefits from random exposure, the overall effects are negative. For example, most of them cannot reproduce.
Cultivators are now learning about how to use radiation to target parts DNA and to unlock the limitless gifts that have been given to us by the genetic loto.
While it is not about overcoming the Heavens, in a way it is about unlocking the heavens.