Explore nuclear structure effects in muonic atoms through this 44-minute conference talk delivered by Sonia Bacca from the University of Mainz. Delve into the intricacies of muonic atoms, lampshift, polarizability, and experimental investigations. Examine the nuclear charge radius and the proton radius puzzle, along with experimental results and calculation methods. Analyze the helium-4 cross-section, precision, and sources of uncertainties in measurements. Investigate the Neta expansion and its implications. Gain insights into the proton radius puzzle, experimental evidence, and draw conclusions about nuclear structure effects in muonic atoms.