Human augmentation has a long history from simple tools to enhance senses and abilities to modern technologies that can fundamentally change what it means to be human. Past augmentation included devices like eyeglasses, hearing aids, and prosthetics. Present augmentation uses computers, smart devices, virtual and augmented reality to enhance senses, actions, and cognition. The future of augmentation may include neural implants, artificial organs and limbs, memory chips, and technologies that blur the lines between human and machine. Human augmentation aims to improve lives and abilities through continuous technological innovation.