Why do Asians last longer at work then white people?

My dad says white people retire earlier than Asian people at intellectual jobs because Asians get age related intellectual decline at much older ages than white people. And me, I believe my brain is still developing and I getting smarter each year. I get told I look like people in their early 20s. And when I was 32, I was told I looked like a 13 year old kid.

Why do Asians last longer at work then white people?
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