Development
Developmental Leaps: Why Your Calm Baby is Suddenly Fussy
Physical growth hurts. Mental expansion is scary.
Robeen Team
Development Experts
October 15, 2023 4 min read
Key Takeaways
- Babies go through 10 major developmental leaps in the first 20 months.
- Fussiness often precedes new skills by 1-2 weeks.
- Extra clinginess is your baby's way of seeking security.
- These phases are temporary—usually lasting 1-2 weeks.
What Are Wonder Weeks?
The 'Wonder Weeks' concept, backed by decades of research, identifies predictable developmental leaps. Before each leap, babies often become fussy, clingy, and difficult. This is because their perception of the world is literally changing.
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