‘Goonies’ Star Reveals Diagnosis: What Finally Made Sense?

A diagnosis brings clarity: Martha Plimpton, celebrated for her role as Stef Steinbrenner in the iconic 1985 film “The Goonies,” has recently shared her journey with Attention-Deficit/Hyperactivity Disorder (ADHD). This revelation, made public on September 6, 2025, has been described by the 54-year-old actress as a “huge relief,” offering a newfound understanding of herself and her experiences.

A Late Diagnosis, a New Beginning

Plimpton’s announcement occurred during the premiere of her new HBO miniseries, “Task,” in New York City. She revealed that she received her ADHD diagnosis approximately four years prior, around the age of 50. This timeframe is what she refers to as a “late diagnosis,” highlighting a common experience for many adults who may have lived for decades without understanding the underlying reasons for their struggles. According to Plimpton, this understanding has been transformative.

Unveiling “ADHDness”

The actress’s decision to publicly share her diagnosis stems from a deep-seated desire to understand herself better and to help others. Plimpton articulated that the diagnosis allowed “so many little things fell into place and made sense that hadn’t made sense before,” leading her to feel “finally free” and “not ashamed.” This newfound sense of liberation has empowered her to embrace her condition openly.

In a powerful display of self-acceptance and advocacy, Plimpton even sported a necklace emblazoned with the letters “ADHD” at the premiere. This bold statement signifies her unwavering commitment to destigmatizing mental health conditions and fostering a more inclusive and understanding society. By sharing her “ADHDness with the world,” Plimpton hopes to provide hope and validation to others who may be navigating similar experiences, particularly those who have received a late diagnosis.

Impact and Awareness

Plimpton’s openness is poised to have a significant impact on public awareness and understanding of ADHD. Her willingness to share her personal journey challenges societal stigmas surrounding the condition, particularly for adults who receive diagnoses later in life. Many individuals may have spent years grappling with unexplained challenges and feelings of inadequacy, only to discover later that ADHD was the underlying cause.

Challenging Stigmas

By speaking candidly about her experiences, Plimpton is helping to break down the stereotypes and misconceptions that often surround ADHD. The condition is frequently portrayed as a childhood disorder, leading to a lack of awareness and understanding of its impact on adults. Plimpton’s story serves as a powerful reminder that ADHD can affect individuals of all ages and that diagnosis and treatment can lead to significant improvements in quality of life.

The Science of ADHD

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and impulsivity. These symptoms can interfere with daily functioning and development. While the exact cause of ADHD is not fully understood, research suggests that it involves a combination of genetic and environmental factors. Studies have shown differences in brain structure and function in individuals with ADHD, particularly in areas related to attention, impulse control, and executive function.

The American Psychiatric Association recognizes ADHD as a valid and treatable condition. Diagnosis typically involves a comprehensive evaluation by a qualified healthcare professional, including a review of symptoms, medical history, and psychological testing. Treatment options may include medication, therapy, or a combination of both. Early diagnosis and intervention are crucial for improving outcomes and reducing the long-term impact of ADHD.

Finding Freedom

Martha Plimpton’s story is one of self-discovery, acceptance, and advocacy. Her willingness to share her ADHD diagnosis has not only brought clarity to her own life but also has the potential to inspire countless others to seek help and embrace their own unique experiences. By challenging stigmas and promoting understanding, she is helping to create a more inclusive and supportive world for individuals with ADHD and other mental health conditions.

Plimpton’s late diagnosis highlights the importance of recognizing that ADHD is not just a childhood disorder and that adults can also benefit from diagnosis and treatment. Her story serves as a reminder that it is never too late to seek help and that understanding and acceptance can lead to a more fulfilling and authentic life.

In conclusion, Martha Plimpton’s openness about her ADHD diagnosis is a powerful act of self-acceptance and advocacy. By sharing her story, she is helping to destigmatize mental health conditions and inspire others to seek help and embrace their unique experiences. Her journey underscores the importance of understanding, acceptance, and early intervention in promoting well-being for individuals with ADHD.