ADHD in adults – symptoms, diagnosis and treatment

What is ADHD in adults?

ADHD (Attention Deficit/Hyperactivity Disorder) is a neurodevelopmental disorder that begins in childhood and can persist into adulthood. Typical characteristics include difficulties with attention, impulsivity and restlessness. In adults, ADHD often manifests less as overt hyperactivity and more, for example, as forgetfulness , problems with self-organisation, time management and emotional regulation.

Many people are not diagnosed until adulthood, as the symptoms were previously unrecognised or misdiagnosed. The key factor is whether the difficulties persist over the long term and significantly interfere with daily life.

What are the symptoms of ADHD in adults?

As the name suggests, the symptoms of ADHD can be broadly divided into two categories: attention deficit on the one hand, and hyperactivity on the other. In practical terms, this means that those affected find it difficult to concentrate, are easily distracted and struggle to see tasks through to the end. On the other hand, they have an excessive urge to move around, find it hard to sit still and feel the need to talk a lot. This is often accompanied by a certain degree of impulsivity, which manifests as acting without thinking and emotional outbursts.

Typical ADHD symptoms in adults

Range of symptoms	This is how ADHD can manifest itself in everyday life
Inattention	You get distracted easily or lose focus when working on longer tasks.
Forgetfulness	Appointments, arrangements or everyday items are often forgotten.
Self-organisation	You find it difficult to prioritise tasks, get started on them or finish them.
Inner turmoil	You often feel under pressure or find it hard to switch off.
Impulsiveness	You interrupt others or make hasty decisions.
Emotion regulation	Frustration, criticism or stress can trigger particularly intense emotions.
Time management	You regularly underestimate how long tasks will take, or miss deadlines.

Not everyone with ADHD experiences the same symptoms. Furthermore, similar difficulties can also be caused by stress, lack of sleep or other mental and physical health conditions. Individual signs are therefore not in themselves evidence of ADHD.

ADHD symptoms can change over the course of a person’s life. In most cases, the symptoms diminish or become less pronounced in adulthood. For example, hyperactivity and the urge to move around often decrease in adulthood and tend to be perceived as inner restlessness and racing thoughts. Furthermore, adults with ADHD are better able to compensate for their symptoms, for example by channelling excess energy into sport. According to statistics, only 5–15 per cent of children with ADHD continue to fully meet the criteria for an ADHD diagnosis in adulthood.

How is ADHD diagnosed in adults?

A diagnosis of ADHD is made by qualified professionals as part of a comprehensive diagnostic assessment. This involves examining which symptoms are present, how long they have been occurring, and to what extent they are affecting various areas of life.

The diagnostic process usually involves several steps:

Medical history: During a detailed consultation, current symptoms, developmental history and possible signs of ADHD in childhood are discussed.
Diagnostic questionnaires: Standardised tools can help to systematically record the symptoms.
Assessment of other causes: Specialists check whether, for example, sleep disorders, depression or other medical conditions might explain the symptoms or are present alongside them.
Diagnostic assessment: Using recognised diagnostic criteria, an assessment is made as to whether ADHD is present and what further support would be appropriate.

The ICD-11, the internationally recognised diagnostic manual for most diseases and mental disorders, precisely defines the diagnostic criteria for ADHD. According to this, the following points indicate a diagnosis of ADHD:

The symptoms must have been present for at least 6 months.
Signs must have been present before the age of 12, typically in early to middle childhood, although some individuals may not become clinically apparent until later.
At least 6 signs of inattention, hyperactivity or impulsivity must be present.
The extent of inattention and hyperactivity-impulsivity lies outside the normal range of variation expected for the individual’s age and intellectual ability.
The symptoms must be observable in a variety of situations or settings.
The symptoms cannot be attributed to other disorders or medication.

According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), approximately 2.5 per cent of the general adult population is affected by ADHD. In Germany, around 5 per cent of people are affected by ADHD. Whilst more males than females are affected during childhood, the gender-specific differences are smaller in adulthood or virtually balanced.

Is there an ADHD self-assessment test for adults?

At present, there is no single test that can, on its own, indicate the presence of ADHD symptoms. However, there are various assessment methods which, when used together, can help determine whether ADHD is present. Clinical interviews, for example, can provide an initial indication. They allow for the systematic collection of information regarding the symptoms, their duration and their impact on various areas of life. The ICD-11 and DSM-5 contain specific guidelines for this purpose.

There are also clinically validated questionnaires and rating scales that can be used to assess ADHD. In addition to self-report and observer-report questionnaires, the following rating scales are commonly used:

Conners Scale: A clinical questionnaire that provides an overview of an individual’s behaviour in relation to the core symptoms of ADHD. Both the number of diagnostic criteria met and a standardised score can be calculated.
Vanderbilt Assessment Scale: This diagnostic rating scale also enables the evaluation of ADHD symptoms in children and adolescents. It is used both in clinical settings and in research to identify and understand the behaviour of those affected by ADHD.
ADHD Self-Report Scale (ASRS): This self-assessment questionnaire can be used to examine and monitor ADHD symptoms over time.

It is important to note that these tests should always be administered and interpreted by qualified professionals, such as psychologists or psychiatrists, to ensure they are highly reliable.

What treatment options are available for ADHD in adults?

ADHD is generally considered incurable. However, it can be effectively managed through a personalised treatment plan designed to reduce the symptoms. In this way, therapy can make everyday life noticeably easier for those affected by ADHD.

Cognitive behavioural therapy has proven particularly effective for ADHD. With the help of this specific form of psychotherapy , those affected can work with psychologists or psychiatrists to develop strategies for recognising and changing their thought patterns and behaviours, enabling them to cope better with the challenges of everyday life. These include strategies for organisational skills, time management and stress management.

There are also strategies that people with ADHD can use themselves to cope better with their daily lives:

Establish routines in your daily life that provide you with structure.
Practise relaxation techniques such as yoga and meditation to promote your inner calm.
Write to-do lists to remind yourself of important tasks and appointments.
When concentrating on work, try to avoid distractions such as loud noises and moving images.
When carrying out tasks, set yourself small, achievable goals and make sure to take plenty of breaks.
Take part in sport and pursue hobbies to burn off excess energy and create a sense of achievement.

In some cases, medication may also be appropriate for ADHD. However, this should always be discussed with a doctor, as it can also have potential side effects.

How can online psychological counselling help with ADHD?

Do you find it difficult to organise your daily life, do you quickly feel overwhelmed, or would you like to cope better with stress and difficult emotions?

Online psychological counselling can help you, as someone with ADHD, to develop an understanding of ADHD symptoms and your personal challenges, and to find practical strategies for everyday life. Together with qualified psychologists, you can, for example, work on structuring your daily life more effectively, managing stress or boosting your self-esteem.

The qualified psychologists at Instahelp can tailor their support entirely to the needs of those affected and provide them with vital support. The main advantage of the online setting is that it allows those affected to be supported within the context of their everyday lives. Depending on your needs, counselling can take place via video or audio call, or via text chat – whichever suits you best.

Frequently Asked Questions (FAQ)

According to established diagnostic criteria, ADHD begins in childhood. However, in some people, the condition is not recognised until adulthood. This may be because the symptoms were less noticeable earlier on or were compensated for by the individual’s own coping strategies.

Possible signs include persistent problems with concentration, forgetfulness, restlessness, impulsiveness and difficulties with self-organisation. The key factor is whether the symptoms persist over a prolonged period and significantly affect several areas of life. A definitive diagnosis can only be made following a specialist assessment.

ADHD in adults is often identified through a combination of self-reports of persistent problems in various areas of life and clinical assessments. Tests and interviews that focus on behavioural patterns typical of ADHD, such as difficulties with time management and organisation, help professionals to make a diagnosis.

Adults with ADHD often have a rapid flow of thoughts and may find it difficult to regulate their attention. They tend to be creative and quick-witted, which can lead both to innovative solutions and to feeling overwhelmed and distracted.

Typical symptoms of ADHD include persistent patterns of inattention, such as forgetfulness and being easily distracted; hyperactivity, such as a constant need to move; and impulsivity, such as acting rashly without careful consideration. These symptoms often lead to difficulties at school, at work and in interpersonal relationships.

Psychological counselling can provide support with related challenges such as stress, self-doubt, feeling overwhelmed or relationship difficulties. However, it is not a substitute for ADHD diagnosis, nor for any medical or psychotherapeutic treatment that may be necessary.