Everything on Product Gap

Real-time cortisol sensing is a critical gap in current health monitoring technologies. While glucose monitoring is widespread, the lack of accessible tools to track stress hormones limits the ability to manage mental health and metabolic function effectively.

Impact: Developing reliable, non-invasive cortisol sensors could unlock new markets in preventive mental health and longevity, addressing a major unmet need.

— from Peptides, GLP-1s, and the Future of Bio-Writing · a16z Podcast· Mar 09, 2026