Extreme behaviors constitute, in contemporary societies, revealing practices. Their connections to death are complex and less well known; theoretical models are even more inaccurate. Studies conducted on this subject suggest nevertheless that they fit into multiple dynamics: living one’s life fully, settling into a feeling of invincibility, forming a suicidal equivalent, keeping with ordalic rituals or being placed in an inevitably suicidal outlook. To better understand these behaviors, one should take into account sexual differences and mimetic rivalry relations, which can vary the expression thereof.