Biracial Asian Americans are twice as likely as monoracial Asian Americans to be diagnosed with a psychological disorder.
http://archive.is/nKEF0
1/3 of hapas (white+asian) suffer from mental illness
https://www.ucdavis.edu/news/biracial-asian-americans-and-mental-health?id=8732
Most congenital problems are more common on mixed-race babies:
https://www.ncbi.nlm.nih.gov/pubmed/15390318
Prematurity and Low Birth Weight are a lot more common in mixed-race babies
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2867623/
Racial classification has genetic significance.
Racial identity is real and is hidden in correlations between different traits.
http://onlinelibrary.wiley.com/doi/10.1002/bies.10315/abstract
With enough data points, an individual will never be closer related to someone of another race than someone of their own race.
http://www.genetics.org/content/176/1/351
An individual's geographic origin can be determined from their genes with remarkable accuracy.
http://www.nature.com/nature/journal/v368/n6470/abs/368455a0.html
In Europe, culture corresponds closely to genetic group.
http://www.ncbi.nlm.nih.gov/pubmed/23390109
Jews, Blacks, and women were instrumental in turning the scientific consensus against the validity of race.
https://www.academia.edu/5625303/Race_and_Anthropology_A_Core_Concept_without_Consensus