It would never allow toxic chemicals to pollute our children's bodies, disrupting their brain and body chemistries.

The problem, a medical one classified as a disease, may be with them or their husbands, with both or with the combination of their body chemistries.

Our body chemistries are surely different.

The body chemistries would be incompatible.

"Something about incompatible body chemistries."

Our body chemistries react similarly to at least one common irritant.

"A moderate difference in body chemistries," Spock explained.

Their body chemistries are too different.

It was an alien odor, the smell of body chemistries that were not human in origin.

A great deal of who and what we are is in our genes and body chemistries, they tell me, and they can even read those codes.