Most of us take for granted the complex functions that our brains perform every day to enable us to think, move, and sense, but there are many diseases and disorders that affect them and lead to their partial or total loss. Due to the significant knowledge gaps about the functional mechanisms underlying neurological disorders, currently available treatments are either ineffective or not curative. That is why neuroscientists around the world are actively involved in the study of diverse aspects of the human brain: they want to unravel the biggest mysteries affecting the global population. How can we, as electronics engineers, help neuroscientists with such an important task? We can contribute to the development of more advanced brain-interfacing devices for neural recording and stimulation by using CMOS technology.