Difficulty focusing. Missed deadlines. Emotional reactivity. Burnout that does not improve with rest.

In many workplaces, these behaviours are framed as performance issues. But sometimes the question is not about motivation or capability; it is about neurobiology.

Attention-Deficit/Hyperactivity Disorder (ADHD) frequently persists into adulthood, and many individuals, particularly women, remain undiagnosed until later in life [1] [2]. When ADHD goes unrecognised at work, it can affect productivity, retention, psychological safety and overall wellbeing.

So how do we differentiate ADHD from other conditions? And why does this matter in the workplace?


What Proper ADHD Assessment Involves

ADHD is not diagnosed based on distraction alone. A thorough assessment requires developmental history, validated screening tools, and medical rule-outs.

Before a diagnosis is made, it is important to rule out medical conditions that can mimic ADHD symptoms. These may include thyroid dysfunction, iron deficiency, vitamin B12 deficiency, vitamin D deficiency, sleep apnoea, and hearing or vision impairment. Iron regulation, in particular, has been studied in relation to ADHD symptoms [3].


Core components of assessment include:

  • A detailed developmental history

  • Screening tools such as the Adult ADHD Self-Report Scale (ASRS) [4], the Barkley Deficits in Executive Functioning Scale, and the Difficulties in Emotion Regulation Scale (DERS-16) [5]

  • Evidence of functional impairment across work, home and social settings

Without appropriate screening, employees may be mislabelled as disorganised or emotionally reactive when the underlying cause is neurodevelopmental or medical.

For organisations, this distinction matters. The wrong assumption can lead to performance management when support and assessment would be more appropriate.

Hormones and ADHD: Why Symptoms Fluctuate

Research suggests that ADHD symptoms may fluctuate across the menstrual cycle and reproductive lifespan, particularly in relation to changes in oestrogen [6].

Menstrual Cycle

Oestrogen influences dopamine, which plays a role in attention, focus and mood regulation. Many women report that ADHD symptoms worsen during the second half of their menstrual cycle, the two weeks leading up to a period, when oestrogen levels decline. During this time, some may experience increased distractibility, irritability, and emotional sensitivity.

Pregnancy and Postpartum

Women with ADHD are more likely to experience mood disorders across the lifespan [1]. This vulnerability can extend into pregnancy and the postpartum period. Care planning may include psychoeducation, behavioural strategies, and collaborative medical management.

Perimenopause and Menopause

Cognitive changes during the menopausal transition are well documented, including shifts in attention, memory, and concentration [7]. For women with ADHD, these hormonal changes may amplify existing difficulties with focus and organisation.

In the workplace, this means ADHD symptoms may appear to intensify during specific life stages. Without awareness, organisations risk interpreting physiological transitions as declining performance rather than contextual shifts in cognitive function.


ADHD and Eating Patterns: A Workplace Performance Issue

Adults with ADHD frequently report irregular eating patterns, including skipped meals, impulsive eating, and difficulty planning meals.

ADHD is associated with approximately fourfold higher odds of eating disorders [8]. ADHD has also been linked to higher rates of obesity [9]. These patterns may reflect challenges with impulse control, planning, and reward-driven behaviour.

Why does this matter at work?

Stable blood sugar is vital for attention, reaction time, and mood [10]. While nutrition is not a substitute for medical care, structured meal timing and adequate protein can complement a broader management plan by supporting cognitive function.

Why ADHD in the Workplace Matters for HR and Leaders

  • Unrecognised ADHD can present as:

  • Chronic lateness

  • Missed details

  • Emotional overwhelm

  • Inconsistent performance

  • Increased burnout risk


However, ADHD is also associated with creativity, rapid ideation, hyperfocus, and strong problem-solving abilities when appropriately supported.


  • Workplaces that understand neurodiversity are better positioned to:

  • Reduce stigma

  • Improve retention

  • Support psychological safety

  • Provide reasonable adjustments

  • Encourage appropriate medical evaluation

This article does not replace personalised medical advice. However, awareness at the leadership level can shift workplace culture from blame to informed support.

When organisations take neurodevelopmental and hormonal health seriously, performance conversations become more compassionate and more effective.

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Disclaimer: The information provided on this website is for educational and informational purposes only and is not intended as medical advice. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. The content is based on personal experience and research, and while we strive for accuracy, it is not guaranteed to be free of errors. Reliance on any information provided on this website is solely at your own risk.