# Richard Sprague > Personal website of Richard Sprague — healthtech entrepreneur, personal scientist, and writer. Site covers microbiome research, continuous glucose monitoring, diet experiments, healthtech, AI, crypto/DeSci, and personal history. Richard Sprague is a former marketing and engineering manager (Apple, Microsoft, etc.) turned healthtech entrepreneur. He was an early employee at uBiome and has tracked his own microbiome hundreds of times. He lives near Seattle and writes about personal science — using rigorous self-experimentation to understand health. ## Key Sections - [About](https://richardsprague.com/about.html): Bio, background, contact - [Microbiome](https://richardsprague.com/microbiome/microbiome.html): Personal microbiome research and test results - [Diet](https://richardsprague.com/health/diet/diet.html): Food experiments including CGM, fermented foods, nutritional analysis - [Healthtech](https://richardsprague.com/health/healthtech/healthtech.html): Wearables, diagnostics, and health technology - [Tech](https://richardsprague.com/tech/tech.html): AI, software tools, personal science technology - [DeSci/Crypto](https://richardsprague.com/tech/crypto/crypto.html): Decentralized science and blockchain in research - [Posts](https://richardsprague.com/posts/posts.html): Miscellaneous writing For a full listing of all pages, see [llms-full.txt](https://richardsprague.com/llms-full.txt). ## Contact - Email: sprague@personalscience.com - Newsletter: https://www.personalscience.com/ - LinkedIn: https://linkedin.com/in/sprague - Twitter/X: https://twitter.com/sprague