Earlier this year, Lara was walking her large Rottweiler, The Dude, when fireworks went off nearby. The Dude panicked, and Lara began to worry she wouldn't be able to manage the situation on her own. Then a stranger offered to help, ensuring both Lara and The Dude got home safely.

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.

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When Juli's car ran out of gas in the middle of the road, three men from a nearby homeless encampment rushed over to push her car to safety.

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 1980, backpacking alone to Greece, Elaine was attacked on a train. Two strangers stepped in, and stayed by her side for nearly the entire 12-hour ride.

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 his dad left, Patrick’s guidance counselor taught him to tie a tie — and showed him he wasn’t alone. Years later, he passed that lesson on to his own son.

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 2005, Ashley's mother attempted suicide. She was hospitalized, and eventually passed away. In the days after her mother's death, Ashley struggled with guilt. She had been the one to request a "Do Not Resuscitate" order. Even though her mother had requested a DNR in the past, Ashley wondered if she'd made the right choice. Then a nurse made a phone call that changed Ashley's life.

If you’re struggling with mental health challenges, there are people who can help. If you're located in the U.S., you can call or text the Suicide and Crisis lifeline 24/7 at 9-8-8, or find them online at 988lifeline.org. If you live outside of the U.S., you can visit findahelpline.com to find country-specific resources.

In 1974, Surinder and his family came out of a pharmacy to discover their car was gone. Not knowing anyone else in town, he opened the phone book, and dialed a stranger with a familiar Indian last name. The man who answered not only helped them, but went on to play a surprising role in their lives.

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.

While on vacation in Mexico, Julie had an accident on a waterslide and was on the brink of drowning. Then some strangers stepped in.

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 Eileen’s husband came home from the hospital after a traumatic brain injury, he wasn’t the same. He couldn't do many of the household chores he used to take care of, like raking up the leaves in their yard. So one day, Eileen decided to try to get the chore done. As she picked up the leaves in her yard, crying, she felt a tap on her shoulder.

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.