Writing in the 2001 issue of the journal "Generations", historian Carole Haber of the University of Delaware, states that Klatz' aspirations and the rhetoric of the A4M "reflect well-worn ideas and the often-enunciated hopes of the past", drawing parallels with the ideas of the 19th century physiologists Charles-Édouard Brown-Séquard, Serge Voronoff and Eugen Steinach. Haber states that the current resurgence of these ideas may be due to their appeal to the aging Baby Boom Generation, in a culture that is focused on the ideal of youth. Haber has also discussed the strong continuities within the philosophy of the anti-aging movement, writing that "For Steinach and Voronoff, as for the members of the A4M, old age was a "grotesque" disease that could be scientifically eradicated through the correct combination of hormones, diet, and surgery."