Yes, research links ADHD with a shorter average life. A UK matched cohort study of adults with diagnosed ADHD, as summarised in a 2025 article by a UK ADHD clinic, reports reduced life expectancy of 4.5 to 9 years for men and 6.5 to 11 years for women.
That is an association, not proof of cause. The studies show who dies earlier, and they point to risks such as injuries, substance use, sleep problems and missed health checks. The clinic article describes many of the associated risks as modifiable. That is a different measure from the life expectancy figures above, so the sections below explain how to read both.
What is ADHD?
As of October 2026, the U.S. Substance Abuse and Mental Health Services Administration describes attention-deficit/hyperactivity disorder as difficulty focusing, being overactive, not being able to control behavior, or a mix of these, with symptoms that are out of the normal range for a person's age and development. SAMHSA's ADHD overview notes that ADHD is the most commonly diagnosed behavioral disorder in children, and that it affects many adults too.
SAMHSA says it is not clear what causes ADHD, and that genes and environmental factors likely both play a role. Symptoms fall into three groups: inattention, hyperactivity and impulsivity. Some people mainly have inattention, while others mainly have hyperactivity and impulsivity.
Can ADHD go away with age?
For many people, no. The MedlinePlus guide to ADHD across the lifespan says ADHD does not magically disappear when you grow up. Even with treatment, many people keep having symptoms in adulthood, though those symptoms may look and feel a little different.
Losing the structure and support of home and school can make symptoms harder to manage, and adult responsibilities can trigger new symptoms or make existing ones worse.
Why is life with ADHD so hard?
MedlinePlus says adults with ADHD may struggle with daily tasks, relationships and work, and those challenges can lead to frustration and a sense of underachievement. Common patterns include:
- Always losing important items such as keys, wallets and phones
- Forgetting appointments, not returning calls or neglecting to pay bills
- Struggling to listen closely, follow instructions or attend to details
- Fidgeting or feeling restless, and interrupting others
MedlinePlus also describes ‘time blindness', a common difficulty with estimating how long tasks take and keeping to schedules.
Why are adults with ADHD linked to a shorter life?
The UK study's authors, as the clinic article describes them, suggest the gap is likely due to modifiable risk factors and unmet support and treatment needs for ADHD and related conditions. The clinic article lists these risks:
- Gaps in diagnosis and treatment, including care that sits outside traditional medical settings
- A higher risk of substance use disorders
- Eating disorders, which carry higher mortality rates
- Sleep disorders, which the article says more than half of people with ADHD experience
- Risk-taking and accidents linked to impulsivity and inattention
- Missed routine health check-ups
- Social and financial stress, including overspending, frequent job changes and relocation
A 2021 systematic review of ADHD and accidents across the lifespan, indexed by the U.S. National Library of Medicine, found increased risk of accidents and injuries in children, adolescents and adults with ADHD. Comorbidities such as substance abuse appeared to raise that risk further. The review also found that studies comparing accident risk and medication effects in older age are still missing.
Why do the headline numbers look so different?
| Source | Date | What it measures | What it reports |
|---|---|---|---|
| 2005 review of ADHD from preschool to adult life | 2005 | Effects on the person, family and community | ADHD may persist into adulthood, disrupting professional and personal life, and has been associated with increased healthcare costs. |
| 2021 review of ADHD and accidents | 2021 | Accidents and injuries | Increased risk across ages; medication appeared similarly effective at reducing accident risk across the age groups studied. |
| UK matched cohort study, as summarised by a UK ADHD clinic | Article dated January 2025 | Life expectancy in adults with diagnosed ADHD | Reduced life expectancy of 4.5 to 9 years for men and 6.5 to 11 years for women. |
A death rate compares how often people die over a period. A life expectancy gap estimates how many years are lost on average. Pooled studies combine results from several research projects, so a headline figure depends on which studies were combined and how. An accident review measures one part of the picture. Read any figure next to the measure behind it, and look for the studies the article cites.
What is still not known?
- Whether treatment narrows the gap. A 2014 systematic review of ADHD pharmacogenetics reports that pharmacological treatment is considered effective and safe for children and adults, with considerable variation in response, doses and side effects. The review states that whether pharmacogenetic studies will improve clinical management ‘remains unanswered'.
- How medication relates to life expectancy. The clinic article says some studies suggest ADHD medication may improve life expectancy, while others indicate a potential increased risk of cardiovascular events.
- Undiagnosed adults. The clinic article notes the UK study covers diagnosed adults, may not generalise to the wider population of adults with ADHD, and that the majority of adults with ADHD remain undiagnosed.
- Older adults. The 2021 accident review says direct comparisons at older ages are still missing.
What are my options for managing ADHD?
No single option suits everyone. These are the main routes described in the sources, side by side, so you can decide with a clinician which combination fits you.
| Option | What it involves | What the sources say | Who it suits and its limits | Cost |
|---|---|---|---|---|
| Clinician assessment and prescribed medication | A diagnosis followed by a clinician-led plan that may include medication | SAMHSA says treatment plans can include medication, psychotherapy, training, education or a combination. A 2014 systematic review reports pharmacological treatment is considered effective and safe, with considerable variation in response, and clinicians should weigh this against each person's situation. | People a clinician has assessed. Side effects and follow-up monitoring need to be discussed. | Varies; ask your clinic and pharmacy. |
| Psychotherapy and training | Structured talk therapy and skills-based training | SAMHSA lists these among treatment options that can improve daily life and reduce symptoms. | People who want skills-based support, alone or alongside other care, as a clinician advises. | Varies; ask the provider directly. |
| Routines, planning tools and timers | Fixed daily times, reminders, planners and alarms | MedlinePlus suggests setting specific times for daily activities and using frequent, attention-grabbing timers or reminder apps, and says the key is finding a tool that keeps you on track. | Anyone who wants more daily structure. Tools vary in how well they suit each person. | Varies by tool. |
| Sleep, food and exercise | Regular sleep, healthy eating and regular physical activity | MedlinePlus says these can help reduce stress, improve mood and better manage symptoms. | Everyone. Sleep problems are common with ADHD, according to the clinic article. | Varies. |
| NIH omega-3 fact sheet: omega-3 supplements | Non-prescription fish or algal oil supplements | Researchers are studying whether omega-3 supplements may help lessen some ADHD symptoms, and more research is needed. The NIH says these supplements can interact with medicines. | People who want to raise it with their clinician first, especially if they take other medicines. | Varies by product; check the label and price directly. |
Is there a free ADHD test for adults?
There is no single test for ADHD. SAMHSA says clinicians may observe you, use questionnaires and rating scales, run psychological tests, collect rating scales from relatives, teachers or others in your life, and use clinical testing to rule out other conditions.
To find out what an assessment costs, ask any clinic or your primary care provider how long it takes, who carries it out and what it costs. The UK clinic article says assessments can run one to two hours or more. For help finding care, SAMHSA suggests FindTreatment.gov or its National Helpline at 800-662-HELP (4357). Our guide to how ADHD is diagnosed in adults, children and women explains what to expect.
What should I do next?
- Book an assessment with a clinician if ADHD symptoms are getting in the way of work, relationships or daily tasks.
- Bring a complete list of your medicines and supplements, since the NIH omega-3 fact sheet says supplements can interact with medicines.
- If medication is discussed, ask what monitoring and heart checks will be part of follow-up, because the clinic article stresses regular follow-up as crucial.
- Read our guide to ADHD management beyond medication before your appointment, so you can list what you already try.
By the Global MH Summit Research Team
This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.