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WEKU
WEKU
Rhitu Chatterjee

Why a stranger's hello can do more than just brighten your day

(Laura Gao for NPR)

Before Gillian Sandstrom became a psychologist, she was a computer programmer. Then she decided to change tracks and pursue a degree in psychology at Toronto Metropolitan University. And she felt like she didn't fit in.

"I was 10 years older than my fellow students," Sandstrom recalls. "I wasn't sure I was meant to be there. I didn't instantly feel like a part of that community."

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