Learn science, visually — for free

Free, beginner-friendly science courses you can read with no account. Clear figures, plain language, one idea at a time — then take the same course interactively.

🧠 10 lessons

How Your Brain Works

The most complex object in the known universe is sitting inside your skull. This free, visual course takes you from a single neuron all the way up to memory, attention, emotion and sleep — in plain language.

Free educational content. Manasaya is a learning platform, not a medical or clinical service.