While there isn't one single "world expert," Dr. Russell A. Barkley is widely considered the leading authority and "Father of ADHD" due to his extensive research and contributions to understanding ADHD in children and adults, with Dr. Edward "Ned" Hallowell also being a prominent world-renowned expert focusing on strengths and a strengths-based approach. Both have significantly influenced ADHD understanding and treatment through research, writing, and public education, alongside other key figures like Patricia Quinn, M.D., and William Dodson, M.D..
Welcome to the official website of Russell A. Barkley, Ph. D., an internationally recognized authority on attention deficit hyperactivity disorder (ADHD/ADD) in children & adults who has dedicated his career to widely disseminating science-based information about ADHD.
The ADHD "30% Rule" is a guideline suggesting that executive functions (like self-regulation, planning, and emotional control) in people with ADHD develop about 30% slower than in neurotypical individuals, meaning a 10-year-old might function more like a 7-year-old in these areas, requiring adjusted expectations for maturity, task management, and behavior. It's a tool for caregivers and adults with ADHD to set realistic goals, not a strict scientific law, helping to reduce frustration by matching demands to the person's actual developmental level (executive age) rather than just their chronological age.
Bill Gates
With an estimated net worth of $92 billion, Gates has admitted to struggling with ADHD, saying he has always had difficulties concentrating and learning things, and he is known as the richest people with ADHD.
8 Most Successful People with ADHD
The 20-minute rule for ADHD is a productivity strategy to overcome task paralysis by committing to work on a task for just 20 minutes, leveraging the brain's need for dopamine and short bursts of focus, making it easier to start and build momentum, with the option to stop or continue after the timer goes off, and it's a variation of the Pomodoro Technique, adapted for ADHD's unique challenges like time blindness. It helps by reducing overwhelm, providing a clear starting point, and creating a dopamine-boosting win, even if you only work for that short period.
After taking knives to school and throwing them at fellow students, Gosling was suspended and underwent a psychological assessment for ADHD. He was never officially diagnosed, according to an interview he did with the London Evening Standard in 2016, nor did he receive medication to manage his symptoms.
The best lifestyle for ADHD involves a foundation of balanced nutrition (whole foods, lean protein, < Omega-3s, reduced sugar/processed items), consistent, engaging exercise, and excellent sleep hygiene (routine, dark room, no screens). Key additions include stress management (mindfulness, yoga, breaks), strong organization (planners, lists, reminders), and building supportive routines and environments, complementing any formal treatment.
Albert Einstein, Physicist & Mathematician
Although it can't be proven, many scholars and historians believe that Einstein one of the greatest minds of all-time, had ADHD.
People with ADHD (attention deficit hyperactivity disorder) can be just as smart as anyone else. ADHD affects attention, impulsiveness, and hyperactivity, but it does not directly correlate with intelligence. Individuals with ADHD can possess a wide range of intellectual abilities, including higher intelligence.
Increase stress relief by exercising outdoors—people with ADHD often benefit from sunshine and green surroundings. Try relaxing forms of exercise, such as mindful walking, yoga, or tai chi. In addition to relieving stress, they can teach you to better control your attention and impulses.
Use the five-minute rule
Commit to working on something for just five minutes. This can sidestep internal resistance and build momentum naturally. Many people find they continue past the five-minute mark once they get going.
A psychiatrist is a medical doctor who specializes in diagnosing and treating mental health disorders, including ADHD. Unlike psychologists or counselors, psychiatrists can prescribe medication, which is often a key component of ADHD treatment.
Optimise your sleep environment.
Make sure your environment is quiet, calm and comfortable. Noise-cancelling earphones, heavy curtains, or a white noise machine may help.
ADHD is diagnosed and treated more often in males than in females. Research on gender differences suggests that girls may be consistently underidentified and underdiagnosed because of differences in the expression of the disorder among boys and girls.
The 24-hour rule for ADHD is a self-regulation strategy to combat impulsivity by creating a mandatory waiting period (often a full day) before reacting to emotionally charged situations or making significant decisions, allowing time for reflection and reducing regretful snap judgments, especially for things like impulse purchases or arguments. It's a pause button that gives the brain space to process, move from impulse to intention, and evaluate choices more logically, helping manage ADHD's impact on emotional regulation and decision-making.
Entrepreneurs. There are some well-known very high-achieving ADHD entrepreneurs including Richard Branson, Bill Gates and Walt Disney. Richard Branson had no interest in anything academic. Still, once he was able to harness his talents and imagination in his own way, he began to build a phenomenal business empire.
Studies suggest that people with ADHD often exhibit better-than-average coordination and reaction times, which makes them suited to fast-moving sports such as basketball or football, where quick decision-making and adaptability are essential [2][5]. ADHD can also be an advantage in academic and professional settings.
The ADHD "30% Rule" is a guideline suggesting that executive functions (like self-regulation, planning, and emotional control) in people with ADHD develop about 30% slower than in neurotypical individuals, meaning a 10-year-old might function more like a 7-year-old in these areas, requiring adjusted expectations for maturity, task management, and behavior. It's a tool for caregivers and adults with ADHD to set realistic goals, not a strict scientific law, helping to reduce frustration by matching demands to the person's actual developmental level (executive age) rather than just their chronological age.
Read on for a list of foods that may be linked with ADHD symptoms.
Standard treatments for ADHD in adults typically involve medication, education, skills training and psychological counseling. A combination of these is often the most effective treatment.
No You're Not with the one and only: 18 Brit Award winning, UK Music Hall of Famer and fellow ADH'D'er, Robbie Williams! Robbie talks candidly about his ADHD, intrusive thoughts, body dysmorphia, and struggles with fame - from masking anxiety on stage to navigating doubts despite worldwide adoration.
24-Hour Hot Spot: Have a designated area somewhere like your desk where you can place your “need to-dos.” Place anything there that needs your attention within 24 hours so that it doesn't get lost. Pocket Notes: Writing on your hand is risky; try writing important things on notes and putting them in your pocket.
Actor Jim Carrey has publicly discussed his lifelong struggles with depression, which he's managed with medication like Prozac and a focus on healthy living, exercise, and positive environments; he also reportedly lives with a diagnosis of Attention-Deficit/Hyperactivity Disorder (ADHD), which many fans note mirrors themes in his early comedic work.