The lower gravity on Mars makes the environment unsafe and unhealthy for humans
Multiple studies demonstrate that the reduced gravity environments of spaceflight lead to significant physiological challenges for humans, including bone demineralization, muscle atrophy, and cardiovascular deconditioning.
The claim is specific, empirical, and directly evaluated by multiple retrieved papers discussing the physiological hazards of reduced and altered gravity on human health. Papers [4], [8], [9], and [11] explicitly support the idea that hypogravity or microgravity environments cause adverse health effects such as muscle atrophy, bone demineralization, and neuromuscular changes, warranting a verdict of SUPPORTED.
N. Goswami, Andrew P. Blaber, Giovanna Valenti, Helmut Hinghofer-Szalkay, J. Evans, D. Bailey, Joan Vernikos, A. Choukér, D. A. Green, O. White, Jack J W A van Loon, Victor A. Convertino. Gravity, Microgravity and Artificial Gravity: Physiological Effects, Implementation and Applications.. 2025. https://doi.org/10.1152/physrev.00055.2024
Paper 4 discusses how altered gravity environments, including microgravity, lead to physiological decline such as bone demineralization, muscle atrophy, and cardiovascular deconditioning.
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Pulvirenti E, Diteesawat RS, Pavei G, Natalucci V, Hauser H, Minetti A, Rossiter J. A Resistive Soft Robotic Exosuit for Dynamic Body Loading in Hypogravity.. 2025. https://doi.org/10.1002/advs.202506057
Paper 8 highlights that prolonged exposure to reduced gravity causes bone demineralization and muscle atrophy, necessitating countermeasures like robotic exosuits.
Marchant A, Ball N, Witchalls J, Wallwork SB, Waddington G. Ankle Somatosensation and Lower-Limb Neuromuscular Function on a Lunar Gravity Analogue.. 2025. https://doi.org/10.3390/brainsci15050443
Paper 9 documents the adverse effects of low gravity and hypogravity on human physiology, specifically noting reductions in somatosensation, muscle tone, and stiffness.
Bailey DM, Blottner D, Gunga HC, Schneider S, Wotring V, Baatout S, Durante M, Olde Engberink RHG, Goswami N, Heer M, Liphardt AM, Monici M, Pagnini F, Stern C, Stukenborg JB, Weber T, Vico L, White O, van Ombergen A, Choukér A. Integrative focus on the space exposome-integrome: physiological challenges and practical limits of countermeasures beyond low Earth orbit.. 2025. https://doi.org/10.1038/s41526-025-00537-1
Paper 11 notes that astronauts facing altered gravity and other space hazards are exposed to over thirty health risks during deep-space missions.
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