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In this work, we study the impact of asymmetric dark matter (ADM) on low-massmain-sequence stars in the Milky Way's nuclear star cluster, where the darkmatter (DM) density is expected to be orders of magnitude above what is foundnear the Sun (${\rho }_{\mathrm{DM}}\gtrsim {10}^{3}\ \mathrm{GeV}\{\mathrm{cm}}^{-3}$). Using a modified stellar evolution code and considering aDM particle ($m_{\chi} = 4 \text{ GeV}$) with a spin-dependent interactioncross section close to the limits allowed by direct detection, we found thatthe interactions of ADM with baryons in the star's core can have two separateeffects on the evolution of these stars: a decrease in the hydrogen burningrate, extending the duration of the main-sequence of stars with $M ~1M_{\odot}$ by a few Gyr; the suppression of the onset of convection in thecore of stars with $M \lesssim 1.5M_{\odot}$ and consequent quench of supplyfor the nuclear reactions. If we consider $\rho_{\text{DM}} > 10^3 \ \text{GeVcm}^{-3}$ (corresponding to the inner 5 pc of the Milky Way), stars lighterthan the Sun will have a main-sequence life span comparable to the current ageof the universe. Stars heavier than two solar masses are not sensitive to theDM particles considered here.

Asymmetric Dark Matter Imprint on Low-mass Main-sequence Stars in the Milky Way Nuclear Star Cluster