Here are some key 2024 autism research highlights for parents:

1. **Early Diagnosis Matters**: Kids diagnosed before age 2.5 were 3x more likely to show significant social symptom improvement compared to later diagnoses (TherapyWorks).

2. **Sibling Recurrence**: Families with one autistic child have a 20% chance of another child having autism, varying by gender/sibling count (Autism Science Foundation).

3. **Cerebellum Link**: New studies show the cerebellum (movement control area) may influence autism-related behaviors (Butterfly Learnings).

4. **Comorbidities**: ~40% of autistic kids have anxiety disorders, and ~50% show ADHD symptoms (Autism Parenting Magazine).

For deeper dives, check Autism Speaks' 2024 roundup or NIMH's science updates. Hope this helps!