Human Health and Performance

Johnson Space Center
General
Human Health and Performance
International Space Station (ISS)

A Quarter Century in Orbit: Science Shaping Life on Earth and Beyond 

For more than 25 years, humans have lived and worked continuously aboard the International Space Station, conducting research that is transforming life on Earth and shaping the future of exploration.
Posted January 13, 2026
Johnson Space Center
Human Health and Performance
People of Johnson

Susan Schuh: Supporting the Humans in Human Spaceflight 

Susan Schuh has dedicated her career to helping humans adapt to life beyond Earth.   As the Flight Crew Integration Operational Habitability (OpsHab) team lead in NASA’s Human Health and Performance Directorate at Johnson Space Center in Houston, Schuh leads efforts to understand what it is really like to live and work in space. She turns […]
Posted January 12, 2026
Human Health and Performance

Microbiology

Microorganisms and Spaceflight Spaceflight poses a risk of adverse health effects due to the interactions between microorganisms, their hosts, and their environment.
Posted December 30, 2025
Human Health and Performance

Hazardous Material Summary Tables (HMSTs)

Hazardous Materials Summary Tables (HMSTs) are a compilation of the chemical, biological, and flammability hazards of materials on a given flight or mission. HMSTs are required by Safety for all Programs, including but not limited to ISS, Commercial Crew Program (CCP), Multi Purpose Crew Vehicle (MPCV), and Gateway.
Posted December 3, 2025
Human Health and Performance

Toxicology Analysis of Spacecraft Air

Toxicology and Environmental Chemistry (TEC) monitors airborne contaminants in both spacecraft air and water. In-flight monitors are employed to provide real-time insight into the environmental conditions on ISS. Archival samples are collected and returned to Earth for full characterization of ISS air and water.
Posted December 3, 2025
TREAT Astronauts Act
Human Health and Performance

LSAH Newsletter

The Lifetime Surveillance of Astronaut Health (LSAH) program collects, analyzes, and interprets medical, physiological, hazard exposure, and environmental data for the purpose of maintaining astronaut health and safety as well as preventing occupationally induced injuries or disease related to space flight or space flight training.
Posted November 25, 2025
Office of the Chief Health and Medical Officer (OCHMO)
Astronauts
General
Human Health and Performance
Humans in Space
The Human Body in Space

Risk of Venous Thromboembolism During Spaceflight

In October 2024, NASA’s Office of the Chief Health and Medical Officer (OCHMO) initiated a working group to review the status and progress of research and clinical activities intended to mitigate the risk of venous thromboembolism (VTE) during spaceflight.
Posted March 15, 2025
Human Health and Performance
Human System Risks

Human System Risk Board

Risk is inherent in human spaceflight. However, specific risks can and should be understood, managed, and mitigated to reduce threats posed to astronauts. Risk management in the context of human spaceflight can be viewed as a trade-based system.
Posted March 11, 2025
Human Health and Performance
Human System Risks

Risk to Crew Health Due to Electrical Shock (Electrical Shock Risk)

It is important to protect humans from unintended electrical current flow during spaceflight. The thresholds for contact electrical shock are well established, and standards and requirements exist that minimize the probability of contact electrical shock. Current thresholds were chosen (vs.
Posted March 11, 2025
Human Health and Performance
Human System Risks

Risk to Vehicle Crew Egress Capability and Task Performance as Applied to Earth and Extraterrestrial Landings

New spacecraft that will transport crews to the Lunar and Martian surfaces and return them to Earth may have diverse landing modalities which will function in different landing environments.
Posted March 11, 2025
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4
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1
Earth Science Technology Office
9
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3
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1
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21
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1
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5
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1
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1
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2
Richard A. Mastracchio
1
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20
Kjell N. Lindgren
3
Marshall Astrophysics
37
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9
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1
Everyday Extraordinary Stories
1
Night Sky Network
34
Technology Demonstration Missions Program
12
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1
Office of International and Interagency Relations (OIIR)
38
Explore
5
Water on Earth
27
Grades 5 - 8
10
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2
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11
Cassini
10
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6
Joe H. Engle
1
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2
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26
STS-66
1
Ecostress (ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station)
3
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9
Native American Heritage Month
7
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8
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2
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24
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1
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1
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1
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7
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68
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1
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4
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23
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16
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107
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3
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19
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62
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18
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21
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1
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17
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33
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3
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6
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1
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1
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4
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3
Environmental Management Division (EMD)
6
University Innovation
10
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3
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3
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3
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1
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1
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198
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8
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202
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221
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2
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1
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3
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1
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1
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274
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8
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1
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2
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3
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316
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26
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1
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1
Zena Cardman
1
HERA (Human Exploration Research Analog)
7
Advanced Plant Habitat (APH)
3
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324
Richard H. Truly
1
Sounding Rockets Program
15
Land Cover
3
Marshall Earth Sciences
29
Space Operations Mission Directorate
50
DART (Double Asteroid Redirection Test)
8
Sustainability at Kennedy Space Center
10
ExoMars
3
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1
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12
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1
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4
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1
Office of Small Business Programs (OSBP)
11
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3
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1
Grades 5 - 8 for Educators
12
Applied Sciences Program
4
Quasars
6
Cell and Molecular Biology
2
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61
John B. Herrington
1
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1
Community Partners
3
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1
Edward G. Gibson
1
Transformative Aeronautics Concepts Program
18
Natural Disasters
24
Partner With Us
5
Game Changing Development Program
32
Human Research Program
24
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1
Barry E. Wilmore
2
Rosetta
1
Learning Resources
132
Spirit (Rover)
4
Integrated Aviation Systems Program
16
Low Earth Orbit Economy
22
CIPHER (Complement of Integrated Protocols for Human Exploration Research)
1
Stennis Test Facility and Support Infrastructure
3
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1
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4
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20
Opportunities For International Participants to Get Involved
12
Floods
6
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1
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9
2017 Solar Eclipse
3
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2
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2
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1
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1
Mars Exploration Program
6
Crew Health and Performance Exploration Analog (CHAPEA)
9
Sunspots
4
EPSCoR
3
University Leadership Initiative
5
Neutron Stars
25
Photojournal
8
Vertical Motion Simulator
1
Gemini VI
1
ICESat-2 (Ice, Cloud and land Elevation Satellite-2)
3
Ames Research Center's Science Directorate
32
Planetary Science
86
Blue Ghost (lander)
4
Science Activation
57
Expedition 69
3
Volcanoes
5
Goddard Institute for Space Studies
17
Apollo 10
3
Prizes, Challenges & Crowdsourcing
6
C-20A
3
SeaWiFS (Sea-viewing Wide Field-of-view Sensor)
1
IXPE (Imaging X-ray Polarimetry Explorer)
15
Lunar Surface Technology Research
1
Comets
11
STS-34
1
Earth System Observatory (ESO)
5
THEMIS-ARTEMIS (Time History of Events and Macroscale Interactions During Substorms - Acceleration, Reconnection, Turbulence and Electrodynamics of Moon's Interaction with the Sun)
1
NASA Open Source Software
1
OSIRIS-APEX (Origins, Spectral Interpretation, Resource Identification, and Security – Apophis Explorer)
3
Fundamental Physics
1
Herschel Space Observatory
1
Advanced Space Suits
2
Astrophysics Division
153
Rings of Jupiter
1
Sounds & Ringtones
1
Land Use
1
Marshall Heliophysics & Planetary Science
8
Space Shuttle
18
David R. Scott
2
Sustainable Aviation
2
ExoMoons
1
Mesosphere
3
NOAA (National Oceanic and Atmospheric Administration)
20
Spitzer Space Telescope
10
Digital Information Platform
9
Technology for Space Travel
15
Mission Equity
4
Office of Technology, Policy and Strategy (OTPS)
21
Extreme Weather Events
9
WB-57
1
Grades 9 - 12
9
Aqua
1
Quesst (X-59)
33
Centennial Challenges
12
Skywatching Tips
31
John W. Young
5
Manufacturing, Materials, 3-D Printing
1
Compton Gamma Ray Observatory (CGRO)
1
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1
Eileen M. Collins
2
TREAT Astronauts Act
1
NEA Scout (Near Earth Asteroid Scout)
1
Pathfinding for Airspace with Autonomous Vehicles
1
Gamma Rays
8
Human Space Travel Research
1
Air Mobility Pathfinders project
5
Becoming an Astronaut
5
RS-25
2
Leland D. Melvin
1

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