In 2016, Tulika was at the grocery store with her seven-year-old son, Vedant, who is non-verbal and autistic. When Vedant began to cry and pull her hair, a stranger helped Tulika in just the right way.

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.

Jon told his high school principal, Mr. Barnett, that he planned to drop out of school. But Mr. Barnett implored him to earn his diploma — which set Jon on a path to success.

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.

One morning, A woke up and began believing he was an undercover government agent. He quit his job, and soon after was arrested for reckless driving. But he wasn't in jail for long, because his boss got A the psychiatric help he needed. That act of kindness was life-changing.

If you or someone you know is in crisis and living in the United States, you can call or text 988. This number provides immediate support for individuals experiencing mental health or substance use-related crises.

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 Vivian's son was young, he often got into situations where he hurt himself or others. One day, while at the park, he threw sand in another child's face. Vivian did her best to handle the situation, but worried that the child's mother would be angry. Instead, the mother said something that gave Vivian solace — and a bit of hope.

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 receiving irregular test results, Alexis left her doctor's appointment in tears. On her way out of the office, a receptionist stopped Alexis and held her while she cried. It is a moment Alexis will never forget.

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.

In the late 1980s, Stephanie was driving to an appointment when she was hit by a large pickup truck. As she stood on the sidewalk crying, a woman came up to her and handed her a cup of tea.

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.

The driver who took Ashley Blas to a cemetery noticed grass covering part of her mother’s gravestone. So he dropped to his knees – in a full suit – and cleared the grass from the grave.

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.

About 30 years ago, Nancy ran the New York City Marathon. When she finished, she headed to the reunion area to greet her family — only to discover that her 8-year-old son was missing. After a frantic search, a woman appeared, holding her son's hand.

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.