they were truly homo sapiens. they were missing a link betweea animals and human beings. that black people did not feel pain the way whites did this a primitiveus and simply unable to register paine. or anxiety or develop heart disease which back then was describeded as anxietyo african-americans were profoundly different being they were not just people with different skin or hair texture, these were beings who are not really humans and had diseases that white people never had, we know deficiency disease was held to be in infectious disease that black people had because they were dirty basically. and even the complication that doctor sims experimented, that in fact had more slave women than white women because they were sexually, forget and dirty and the reason given a lot of illness like malaria, yellow fever, they proclaim that black people didn't die like white people did and they suffered less from malaria and the theories were really profound the idea that black people didn't suffer from heat stroke and they could workk long hours without becoming tired, you take the