Life and health

Harvey F. Lodish

Harvey F. Lodish, also known as Harvey Lodish, is an American molecular biologist at MIT and the Whitehead Institute who cloned the erythropoietin receptor and leads the textbook Molecular Cell Biology.

Harvey Feigenbaum

Harvey Feigenbaum is an American cardiologist at the Indiana University School of Medicine, called the "Father of Echocardiography" for pioneering the use of ultrasound to examine the heart.

Harvey G. Klein

Harvey G. Klein is an American hematologist who led the NIH Clinical Center's Department of Transfusion Medicine for 36 years, retiring in 2019 after more than 300 publications.

Harvey Itano

Harvey Itano (1920–2010) was a Japanese American biochemist and geneticist who showed in 1949 that sickle cell anemia is a molecular disease.

Harvey J. Alter

Harvey J. Alter is an American physician-scientist at NIH whose work on transfusion hepatitis led to the discovery of hepatitis C and the 2020 Nobel Prize.

Harvey J. Weiss

Harvey J. Weiss is an American hematologist and Columbia professor emeritus known for showing that aspirin inhibits platelet aggregation and for defining platelet storage pool deficiency.

Harvey L. Levy

Harvey L. Levy is an American physician and biochemical geneticist at Boston Children's Hospital and Harvard Medical School, known for newborn screening and maternal phenylketonuria research.

Harvey Max Chochinov

Harvey Max Chochinov, also published as Harvey M. Chochinov, is a Canadian psychiatrist at the University of Manitoba known for his research on dignity in the terminally ill.

Harvey R. Colten

Harvey R. Colten (1939–2007) was an American pediatric immunologist who showed that complement proteins are made outside the liver and identified surfactant protein B deficiency in newborns.

Harvey R. Gralnick

Harvey R. Gralnick is an American physician-scientist in blood coagulation research, based at the NIH Clinical Center in Bethesda, Maryland, known for work on von Willebrand disease.

Harvey R. Herschman

Harvey R. Herschman, also published as Harvey Herschman, is an American molecular biologist at UCLA known for cloning the COX-2 gene and identifying the EGF receptor.

Harvey S. Marver

Harvey S. Marver was a physician at the National Cancer Institute and UCSF who helped establish the enzymatic basis of the hepatic porphyrias; he died in 1971 at 37.

Harvey T. McMahon

Harvey T. McMahon, born in Clones, Ireland, has led a laboratory at the MRC Laboratory of Molecular Biology in Cambridge since 1995, studying membrane curvature and endocytosis.

Oct 10, 2026

Harvey V. Fineberg

Harvey V. Fineberg is an American physician and health-policy leader who led the Harvard School of Public Health, the Institute of Medicine, and the Gordon and Betty Moore Foundation.

Harvey Whiteford

Harvey Whiteford is an Australian psychiatric epidemiologist and University of Queensland professor who leads the mental and substance use disorder work of the Global Burden of Disease studies.

Harvey Williams Cushing

Harvey Williams Cushing (1869–1939) was an American neurosurgeon widely called the father of modern neurological surgery, who described Cushing syndrome and won the 1926 Pulitzer Prize.

HAS-BLED

The HAS-BLED score estimates the 1-year risk of major bleeding in patients with atrial fibrillation on oral anticoagulation, with a score of 3 or higher flagging high risk.

Oct 21, 2026

HAS2

HAS2 (hyaluronan synthase 2), Gene ID 3037, human membrane enzyme synthesizing hyaluronan; cloned 1996 by Watanabe and Yamaguchi; essential isoform for cardiovascular development.

Hasan Bazari

Hasan Bazari is an American nephrologist and internist at Massachusetts General Hospital who directed its internal medicine residency program from 1994 to 2014 and wrote NEJM Case Records.

Hash oil

Hash oil, also called butane hash oil or cannabis extract, is a solvent-made cannabis concentrate with up to 90% THC versus about 12% in flower, consumed by dabbing or vaping, with fire, contamination, and dependence risks.

Hashem B. El‐Serag

Hashem B. El-Serag is a Palestinian-born American gastroenterologist at Baylor College of Medicine who studies liver cancer and served as president of the American Gastroenterological Association in 2019.

Hashim Al-Hashimi

Hashim Al-Hashimi is an American biophysical chemist at Columbia University known for using NMR to capture rare, short-lived shapes of RNA and DNA, including transient Hoogsteen base pairs.

Hashimoto's thyroiditis

Hashimoto's thyroiditis (chronic lymphocytic thyroiditis, autoimmune thyroiditis) is an autoimmune destruction of the thyroid and the most common cause of hypothyroidism, first described by Hakaru Hashimoto in 1912, affecting about 7.5% of adults worldwide and four times more women than men, treated with levothyroxine.

Hashish

Hashish (حشيش) is compressed cannabis resin from female flowering tops, controlled as cannabis resin under the 1961 Single Convention; THC content rose 66% in Europe 2014–2024, distinct from marijuana and hash oil.

Hasnat Khan

Hasnat Ahmad Khan (born 1959, Jhelum, Pakistan) is a British-Pakistani cardiothoracic surgeon at Basildon University Hospital, Essex, known for his secret 1995-1997 relationship with Princess Diana, later covered in the book Diana: Her Last Love, the 2013 film Diana, and The Crown.