Life and health scientists

Kristian Helin

Kristian Helin is a Danish cancer researcher working on epigenetics who has led the Institute of Cancer Research in London since 2021 and identified the first E2F transcription factors.

Kristian R. Olson

Kristian R. Olson is an American internist and pediatrician at Massachusetts General Hospital and Harvard Medical School, known for founding CAMTech and co-inventing the AIR newborn resuscitator.

Kristian Reich is a German dermatologist and translational researcher in inflammatory skin diseases, guest professor at the University Medical Center Hamburg-Eppendorf and co-founder and Chief Scientific Officer of MoonLake Immunotherapeutics.

Oct 10, 2026

Kristie L. Ebi

Kristie L. Ebi is an epidemiologist and University of Washington professor who has worked on climate change and health for over 30 years, including leading IPCC assessments.

Kristin A. Hogquist

Kristin A. Hogquist is an American immunologist at the University of Minnesota known for her work on T cell development in the thymus, elected to the National Academy of Sciences in 2022.

Kristin Baldwin

Kristin K. Baldwin is a neuroscientist and Professor of Genetics and Development at Columbia University since 2020, known for reprogramming, cloning firsts, and 2024 hybrid-brain research.

Kristin Branson

Kristin Branson is a computational biologist and Senior Group Leader at HHMI's Janelia Research Campus, known for JAABA, machine learning software that automatically annotates animal behavior from video.

Kristin L. Nichol

Kristin L. Nichol is an American physician-epidemiologist at the University of Minnesota and Minneapolis VA whose studies quantified how influenza vaccination reduces hospitalizations and deaths in elderly people.

Kristin Scott

Kristin Scott is a neuroscientist and Professor Emerita at UC Berkeley known for characterizing the Gustatory Receptor gene family and how hunger and thirst act on fly taste circuits.

Kristin V. Tarbell

Kristin V. Tarbell is an American immunologist who led the Immune Tolerance Unit at NIH's NIDDK, studying dendritic cells and regulatory T cells to treat type 1 diabetes.

Kristina Gemzell‐Danielsson

Kristina Gemzell-Danielsson is a Swedish physician-scientist in obstetrics and gynecology, professor at Karolinska Institutet since 2006, known for medical abortion research with mifepristone and misoprostol and for the 2024 PRIMA trial.

Kristina Sakers

Kristina Sakers, also published as Kristina Sakers Hays, is an American neuroscientist at HHMI in Durham, North Carolina, known for showing that astrocytes locally make proteins.

Kristina Schoonjans

Kristina Schoonjans is a metabolism researcher and Associate Professor at EPFL in Switzerland, known for discovering that bile acids increase energy metabolism by activating the TGR5 receptor.

Kristina Sundquist

Kristina Sundquist is a Swedish professor of family medicine and clinical epidemiology at Lund University, known for nationwide register studies of social environment and chronic disease.

Kristina Teixeira

Kristina Teixeira, or Kristina J. Anderson-Teixeira, is a forest ecosystem ecologist who leads the ForestGEO Ecosystems & Climate Program at the Smithsonian and received a Presidential Early Career Award in 2019.

Kristine E. Ensrud

Kristine E. Ensrud is an American general internist and clinical epidemiologist at the University of Minnesota and Minneapolis VA who studies fractures, falls, and frailty in older adults.

Kristine Kuhn

Kristine Kuhn is an American rheumatologist who heads the Division of Rheumatology at the University of Colorado School of Medicine and received a 2025 PECASE award.

Kristine Yaffe

Kristine Yaffe is an American psychiatrist and epidemiologist who studies cognitive aging and dementia at UCSF and the San Francisco VA, estimating 30%–40% of dementia risk may be preventable.

Kristján R. Jessen

Kristján R. Jessen, also published as Kristjan R. Jessen, is an Emeritus Professor at University College London known for landmark work on Schwann cells and enteric glia.

Kristopher T. Kahle

Kristopher T. Kahle is a pediatric neurosurgeon and human geneticist who directs pediatric neurosurgery at Massachusetts General Hospital and studies the genetics of hydrocephalus in children.

Kristy Red-Horse

Kristy Red-Horse is an American cardiovascular developmental biologist and Stanford professor elected to the National Academy of Medicine in 2023 for research on coronary vessel development.

Krystyna Keleman

Krystyna Keleman is a Drosophila neurogeneticist who studies how learning is converted into long-term memory in fruit flies; she was a Group Leader at HHMI's Janelia Research Campus from 2013 to 2022.

Oct 10, 2026

Krzysztof Fidelis

Krzysztof Fidelis is a computational structural biologist who directs the Protein Structure Prediction Center at UC Davis and co-founded CASP, the biennial protein structure prediction experiment, in 1994.

Krzysztof Kiryluk

Krzysztof Kiryluk is a nephrologist and physician-scientist who serves as Chief of Nephrology and Jay Meltzer Professor of Medicine at Columbia University, studying the genetics of kidney disease.

Krzysztof Palczewski

Krzysztof Palczewski is a Polish-born American biochemical pharmacologist and vision scientist known for solving the crystal structure of rhodopsin, the retina's light-detecting protein, and elected to the National Academy of Sciences in 2022.

Kuan‐Teh Jeang

Kuan-Teh Jeang, known as K T Jeang, was a Taiwanese-born molecular virologist who spent his career at the NIH studying HIV-1 and HTLV-1 and founded the journal Retrovirology in 2004.

Kumao Toyoshima

Kumao Toyoshima (豊島久真男, 1930–2022) was a Japanese virologist and oncologist who first proved a cancer virus carries a transforming gene, identified the erbB oncogene, and co-identified HER2.

Kun Ping Lu

Kun Ping Lu is a Chinese-born biochemist and cancer biologist known for discovering Pin1, an enzyme linked to cancer and Alzheimer's, and developing Pin1-targeted therapies.

Kun Zhang

Kun Zhang is an American-based genomics and epigenomics researcher known for single-cell genome sequencing, a Principal Investigator at Altos Labs after chairing bioengineering at UC San Diego.