Free mini-courses
Short courses, real science
Each course is a numbered series of short lessons — read one a day or binge the lot. Completely free, no signup, no email wall. New lessons publish weekly.
7-part course
Build a Habit That Sticks
A free 7-part course on building habits that survive real life — the habit loop, tiny starts, stacking, streaks and identity. One lesson at a time.
8-part course
Sustainable Weight Loss 101
A free 8-part course on losing weight the evidence-based way — energy balance, reading the scale, plateaus, lapses and the maintenance nobody plans for.
7-part course
The Psychology of Quitting
A free 7-part course that walks the whole quitting arc — deciding, preparing, surviving cravings, the first 30 days, slips and staying quit for good.
8-part course
The First 90 Days with a Newborn
A free 8-part course for new parents — feeding, diapers, sleep, growth charts, night shifts and checkups, with honest ranges instead of rigid rules.
6-part course
Understanding Your Cycle
A free 6-part course on cycle literacy — the four phases, what's normal, real ovulation math, PMS and PMDD, and keeping your cycle data private.
6-part course
Motivation That Lasts
A free 6-part course on motivation that survives week three — waves vs. fuel tanks, systems over goals, small wins, honest gamification, self-compassion.
30-part course
Data Structures & Algorithms: The Complete Course
A free, book-quality DSA course — Big-O, arrays, linked lists, trees, graphs, sorting, dynamic programming and more, with complexity tables, pseudocode and worked examples for every topic.
45-part course
AI Foundations: From Curious to Confident
A free, plain-language path through Artificial Intelligence — from what AI is and where it shows up in daily life, up to algorithms, neural networks, deep learning and LLMs.