There may be little you can do to avoid primary
brain tumors
. You cannot change your heredity, which is one of the few known risk factors. Avoiding radiation and toxins is desirable, unless the
radiation
is used to treat a cancer. While it is difficult to reduce your risk of primary brain tumors, you can reduce your risk of tumors that may spread to the brain, including
lung
,
breast
,
melanomas
, and
prostate.