Most parents don't realize this, but 90% of your child's brain architecture is built before age 5.

That means the window to make the biggest impact on your child's intelligence is RIGHT NOW — and it doesn't require flashcards, expensive tutors, or screen time.

Here are 3 simple habits I've seen transform toddlers' cognitive development:

1. The "Why" Game (5 min/day)

When your child asks "why?" — don't just answer. Ask it back. "Why do YOU think the sky is blue?" This builds reasoning pathways and critical thinking.

2. Puzzle Play Before Screen Time

Before any screen time, 10 minutes of age-appropriate puzzles. Spatial reasoning is one of the strongest predictors of IQ, and puzzles are the fastest way to build it.

3. Narrate Everything

Talk through what you're doing as you cook, clean, drive. "I'm cutting the red apple into 4 pieces." This builds vocabulary, number sense, and cause-and-effect understanding simultaneously.

These aren't random tips — they're backed by developmental neuroscience research.

I've put together a complete system with daily activities, milestone trackers, and step-by-step guides inside Boosting Your Child's IQ. If your kid is 2-5, this is the window. Don't let it close.