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Roger Sperry’s Split Brain Experiments (1959–1968)
By: Dina A. Lienhard
| Published: Dec 27, 2017
In the 1950s and 1960s, Roger Sperry performed experiments on cats, monkeys, and humans to study functional differences between the two hemispheres…
Split brainBrain--Localization of functionsCorpus callosumBrain MappingSplit-Brain Procedure
Theodora (Theo) Emily Colborn (1927-2014)
By: Alexis Abboud
| Published: Dec 30, 2014
Theodora Colborn studied how chemicals affect organisms as they develop and reproduce during the twentieth and twenty first centuries in the US. By…
endocrine disruptorsEndocrine disrupting chemicalsPollutantsEndocrine toxicologyEndocrine System
Ontogeny and Phylogeny (1977), by Stephen Jay Gould
By: M. Elizabeth Barnes
| Published: Oct 21, 2014
Ontogeny and Phylogeny is a book published in 1977, in which the author Stephen J. Gould, who worked in the US, tells a history of the theory of…
LiteratureEvolutionOntogenyEmbryologyMeckel, J. F. (Johann Friedrich), 1781-1833
US Regulatory Response to Thalidomide (1950-2000)
By: Chanapa Tantibanchachai
| Published: Apr 01, 2014
Thalidomide, a drug capable of causing fetal abnormalities (teratogen), has caused greater than ten thousand birth defects worldwide since its…
ContextThalidomideThalidomide--Side effectsTeratogenicity testingMultiple Myeloma
“Mortality and Morbidity in Transsexual Patients with Cross-Gender Hormone Treatment” (1989), by Henk Asscheman, Louis J. G. Gooren, and P. L. E. Eklund
By: Lauren Hilton
| Published: Jan 14, 2026
In 1989, physicians Henk Asscheman, Louis J. G. Gooren, and P.L.E. Eklund published the article “Mortality and Morbidity in Transsexual Patients with…
Transgender PersonsHormonesEstrogensAndrogensTranssexual Person
Charles Drew (1904–1950)
By: Sabrin Mohamed
| Published: Jun 30, 2025
Charles Richard Drew was an African American surgeon who helped improve blood transfusion practices during World War II and contributed to the…
Blood TransfusionMaternal MortalityBlack or African AmericanBlood banksAfrican Americans in medicine
No-scalpel Vasectomy
By: Cole Nichols
| Published: Jul 04, 2022
No-scalpel vasectomy, or NSV or keyhole vasectomy, is a surgical method of sterilization that involves puncturing the skin of the scrotum to access…
TechnologySterilizationVasectomyMale SterilizationFamily Planning
Categorization of Conservative, Semi-Conservative, and Dispersive DNA Replication Theories (1953–1956)
By: Victoria Hernandez
| Published: Oct 31, 2019
In 1956, Gunther Stent, a scientist at the University of California Berkeley in Berkeley, California, coined the terms conservative, semi-…
DNADNA ReplicationDNA HelicasesGenesHeredity
Vegas Baby (2016)
By: Jessica Cartwright
| Published: Jun 03, 2019
In 2016, Runaway Films released the documentary Vegas Baby. The film, directed by Amanda Micheli, follows three women who struggle with infertility…
LiteratureLas Vegas Valley (Nev.)Fertilization in VitroInfertilityInfertility, Female
Symptoms Associated with Polycystic Ovarian Syndrome (PCOS)
By: Alexis Darby
| Published: Dec 19, 2017
Polycystic ovarian syndrome or PCOS is one of the most common reproductive conditions in women, and its symptoms include cystic ovaries, menstrual…
Polycystic ovary syndromeHirsutismOligomenorrheaMenstruation DisturbancesAmenorrhea