In this study, researchers show that when cells experience mechanical stress—such as compression within dense tissues or tumors—the nucleus can become physically deformed, leading to DNA damage. In response, mitochondria reposition themselves close to the nucleus and locally increase ATP production to supply the energy needed for DNA repair and continued cell division. When mitochondrial ATP production was blocked, DNA repair slowed and cell proliferation was impaired, suggesting that mitochondrial energy is essential for maintaining genome integrity under mechanical stress. The findings highlight how cells dynamically reorganize their energy systems to cope with physical forces and protect their DNA. This mechanism also suggests that mitochondrial function plays an important role in determining whether stressed cells can survive and continue dividing, offering an interesting perspective on how energy metabolism may influence cell survival and growth in dense tissues such as tumors.