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  1. How I AI
  2. How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)
How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI · Nov 24, 2025

Build a personal AI wellness coach with ChatGPT to synthesize health data like MRIs and blood tests into actionable, optimized guidance.

Personal AI Coaches Gain Power by Synthesizing Siloed Health Data like MRIs and Bloodwork

The value of a personal AI coach isn't just tracking workouts, but aggregating and interpreting disparate data types—from medical imaging and lab results to wearable data and nutrition plans—that human experts often struggle to connect.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago

AI's Best Use is Translating Expert Medical Advice into Personalized, Actionable Plans

Instead of replacing experts, AI can reformat their advice. It can take a doctor's diagnosis and transform it into a digestible, day-by-day plan tailored to a user's specific goals and timeline, making complex medical guidance easier to follow.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago

AI Can Serve as a "Synthetic Cofounder" for Asynchronous Problem Solving in Distributed Teams

In a remote environment, immediate access to colleagues isn't always possible. A GPT loaded with context about your company and cofounders' thinking can act as a thought partner, helping you overcome the "blank slate" problem without scheduling a meeting.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago

Consulting Firms Create "Synthetic Client" GPTs to Pre-Align Work for Busy Stakeholders

To save time with busy clients, create a "synthetic" version in a GPT trained on their public statements and past feedback. This allows teams to get work 80-90% of the way to alignment internally, ensuring human interaction is focused on high-level strategy.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago

The Future of Healthcare Involves a Patient's AI Coach Communicating Directly With Their Doctor's AI

The next evolution in personalized medicine will be interoperability between personal and clinical AIs. A patient's AI, rich with daily context, will interface with their doctor's AI, trained on clinical data, to create a shared understanding before the human consultation begins.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago

A Robust GPT Prompt Includes an "Anti-Prompt" Specifying What the AI Should Avoid

Effective GPT instructions go beyond defining a role and goal. A critical component is the "anti-prompt," which sets hard boundaries and constraints (e.g., "no unproven supplements," "don't push past recovery metrics") to ensure safe and relevant outputs.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago

Use Multi-Modal Inputs like Video and Circled Images to Give AI Coaches Precise Medical Context

Text descriptions of physical pain are often vague. To improve an AI coach's helpfulness, use multi-modal inputs. Uploading a photo and circling the exact point of pain or a video showing limited range of motion provides far more precise context than words alone.

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus) thumbnail

How to create your own AI performance coach: Optimizing your unique nutrition, recovery, and injury management needs | Lucas Werthein (Cactus)

How I AI·3 months ago