Sept. 12, 2005 — Prenatal exposure to phthalates adversely affects male infant genital development, according to the results of a study published in the August issue of Environmental Health ...

Humans have about 3 billion DNA bases in their genetic makeup. However, most of it does not encode for protein.

Maddy has a degree in biochemistry from the University of York and specializes in reporting on health, medicine, and genetics. Maddy has a degree in biochemistry from the University of York and ...

Tanner stages track five milestone physical changes during puberty for both boys and girls. Early puberty in females starts before age 8, and before age 9 in males. Delayed puberty is when girls don't ...