[1] In 2005, she was also invited by the Assistant Secretary of Defense for Health Affairs to visit Guantanamo Bay detention center to witness the conditions detainees were being held in, and to provide ethical advice as to their continued treatment.

[1][4] She has worked and published extensively on such issues as post-traumatic stress disorder (PTSD), military suicide, and the honor, guilt, and shame associated with war.

She asserts that soldiers returning home often receive insufficient care, leaving them ill-prepared for non-violent civilian life.

In her most recent book Stoic Wisdom, Sherman argues for a credible modern Stoicism based on ancient Greek and Roman texts.

In a talk for House of SpeakEasy’s Seriously Entertaining program, Sherman said, “Stoic philosophy sort of captured, I think terrifically by Seneca, who says, at the very end of On Anger, this wonderful treatise, he says, ‘Let us cultivate humanity.’ And essentially, that's the rallying call for it, for this idea of the Stoics, are worth reading, it's because they exhort us to rise to our fullest potential through reason, cooperation, and, you know, and a sense of selflessness when it's required.”[7] In her previous book Afterwar, Sherman explores questions of moral injury and healing in war.

The moral dimensions of returning soldiers' psychological injuries—guilt, shame, feeling responsible for doing wrong or being wronged—are often ignored and elude conventional treatment.