We don't read actual books to them yet, but since a constant supply of words helps their cognitive development we basically talk to our baby at every opportunit

We don't read actual books to them yet, but since a constant supply of words helps their cognitive development we basically talk to our baby at every opportunity. Reading twitter, food packaging, store signs, singing songs (even if we can't remember the actual lyrics), explaining how to make a good reuben sandwich. I'm glad to see the research bears it out.