The Inputs Journal was developed through extensive observation, pattern testing, and review of publicly available research. While we are not doctors or scientists, our team of journalists and researchers drew inspiration from dozens of peer-reviewed studies exploring how daily behaviors — sleep, nutrition, movement, screen use, social connection, and more — impact mental clarity, energy, and overall well-being.

The studies below helped shape the categories and numerical value system within the journal, providing a foundation for understanding how small, everyday inputs can influence how we feel and function over time.