An excellent article by Jasmeen Pasha, MD is posted here with the author’s permission

No Muslim is born Jihadi or has any genetic predisposition to turn into a Jihadi.  Up to the last century, the concept of jihad in Islam was generally all about struggling against one’s own soul, ego, arrogance, false pride, false assumptions, jealousy, greed and an ongoing conscious effort towards self-improvement and self-purification from harmful mundane worldly things.  The complete article can be read online or downloaded here.