A cohesive overview of biohacking principles supported by contemporary scientific understanding Detailed discussion of tools, technologies, and techniques used for physical, cognitive, and metabolic enhancement Balanced assessment of opportunities and risks, encouraging informed and responsible experimentation Insightful treatment of emerging areas such as neuroenhancement, microbiome modulation, and precision biological interventions Consideration of ethical and regulatory dimensions shaping the future of personal biological experimentation Engaging examples and contextual explanations to support learners, innovators, and wellness practitioners