Long-form essays examining the scientific claims and limits of biological research, especially organoids in drug discovery, disease modeling, and Alzheimer's research. Readers get critical, detailed analysis of where lab models succeed, fail, and get overhyped, plus updates from the author's work on AI and health.

A science newsletter that explains discoveries, history and current research in an accessible, lightly humorous way, mixing explainers with memes and deeper dives. Readers get stories like the history of penicillin research, optogenetics and quantum physics explained, with a paid tier offering extra rabbit-hole content.

A neuroscience newsletter that turns brain research into short, actionable advice on topics like screen use, emotional health and social connection. Recent issues recap a five-week 'Natural Intelligence' series and cover research on how social connection relates to cognitive decline.

Iain McGilchrist's Substack extends his hemisphere-hypothesis work to cultural and philosophical questions, often responding to other writers and sharing interviews or articles. Issues combine his own commentary on left-hemisphere dominance with reposted pieces on topics such as free speech and censorship.