When Cara Beth was studying abroad in college, her brother, Luke, died in an accident. On the plane ride home, a stranger made her overwhelming grief a bit easier to bear.

Do you have your own story of an unsung hero? We'd love to hear it! Record a voice memo and email it to us at myunsunghero@hiddenbrain.org.

Some guidance:

--Focus on ONE moment that you will never forget.

--Make sure you're in a quiet, non-echoey room.

--Speak conversationally, like you're talking to a friend.

--Let us know why this person continues to impact your life.

--If your hero were standing in front of you today, what would you say? Address them directly.

When Claire was a server at a high-end restaurant, she fumbled opening an expensive bottle of wine. But instead of acting annoyed, the customer handled it with grace.

Do you have your own story of an unsung hero? We'd love to hear it! Record a voice memo and email it to us at myunsunghero@hiddenbrain.org.

Some guidance:

--Focus on ONE moment that you will never forget.

--Make sure you're in a quiet, non-echoey room.

--Speak conversationally, like you're talking to a friend.

--Let us know why this person continues to impact your life.

--If your hero were standing in front of you today, what would you say? Address them directly.

After Virginia's young daughter accidentally boarded a subway train without her, someone unexpected stepped in to help.

Do you have your own story of an unsung hero? We'd love to hear it! Record a voice memo and email it to us at myunsunghero@hiddenbrain.org.

Some guidance:

--Focus on ONE moment that you will never forget.

--Make sure you're in a quiet, non-echoey room.

--Speak conversationally, like you're talking to a friend.

--Let us know why this person continues to impact your life.

--If your hero were standing in front of you today, what would you say? Address them directly.