How to avoid paraganglioma? what exactly is it anyway?

Paraganglioma: Most paragangliomas occur as sporadic tumors, that is, they are not inherited. However, certain hereditary syndromes such as von hippel-lindau syndrome, mutations in the succinate dehydrogenase (sdh) gene, and multiple endocrines neoplasia (men) type 2 can be associated with development of this tumor. In short to your answer, lifestyle changes will not lower the chances of developing these tumors.