Here's a quick summary of key 2025 autism research highlights from the Autism Science Foundation and other reliable sources:

1. **Prevalence Update**: Autism now affects 1 in 31 U.S. children (CDC data).

2. **Subtype Discovery**: A groundbreaking Nature Genetics study identified four biologically distinct autism subtypes, each with unique genetic profiles and developmental patterns.

3. **Trajectory Research**: New findings show autism traits can change significantly from early childhood through adolescence (Dichter et al., 2025).

4. **Service Gaps**: 11% of autistic children still aren't receiving needed healthcare services.

The full 2025 Year in Review offers more details on these important developments - you can find it on the Autism Science Foundation's website or their podcast episode covering these breakthroughs.