Your keys were in your hand a minute ago. Now they're gone. Your phone is somewhere in the house, your glasses are on your head, and the permission form you signed is nowhere to be found. If this happens every day, you've probably heard "just be more careful" more times than you can count. So, why do people with ADHD lose things so easily? This guide explains working memory in plain words, why losing and forgetting things can come with ADHD, the shame that often goes with it and some small systems that may help.
This post is general information, not a diagnosis. Only a qualified professional can assess for ADHD.
Losing things is a common ADHD frustration
ADHD losing things isn't a myth or an excuse. The U.S. Centers for Disease Control and Prevention (CDC), summarizing the diagnostic criteria, lists "often loses things necessary for tasks and activities" and "is often forgetful in daily activities" among the signs of inattention. Examples include keys, wallets, paperwork, glasses and phones.
That doesn't mean everyone who loses things has ADHD. Everyone misplaces their keys sometimes. With ADHD, it tends to happen often, across different parts of life, and it gets in the way.
Working memory, in plain words
Working memory is your brain's sticky note. The Harvard Center on the Developing Child describes it as the ability to hold and work with information in your mind over short periods of time. It's what lets you remember a phone number long enough to dial it, or keep track of where you just put your coffee.
Research has linked ADHD with differences in working memory. A review of many studies, published in the Journal of the American Academy of Child and Adolescent Psychiatry, found that children with ADHD tended to show weaker working memory than children without ADHD. For many people, those differences continue into adulthood.
When that mental sticky note is small or falls off easily, things slip away. You put your keys down while thinking about something else, and the memory of where you put them simply never sticks.
Out of sight, out of mind
Many people with ADHD say that if they can't see something, it's as if it doesn't exist. A bill tucked into a drawer gets forgotten. A jacket in the back of the closet is never worn. Leftovers at the back of the fridge go uneaten.
This isn't about not caring. When working memory doesn't hold on to information well, the things you can see do much of the remembering for you. If they're hidden, the reminder is gone too.
Why it happens the moment you put something down
Think about the moment you walk in the door. You're carrying bags, your phone buzzes, the dog needs to go out and you remember an email you forgot to send. In the middle of all that, you put your keys down. Your attention was somewhere else, so your brain never recorded where.
Putting things down on autopilot is one of the main reasons for ADHD losing keys and phone. Transitions, like arriving home, leaving work or switching tasks, are especially risky moments. Many people notice it gets worse when they're rushed, stressed or tired.
Why do people with ADHD forget things?
Losing objects is only part of it. Why do people with ADHD forget things like appointments, chores, plans or what they walked into a room to get? The same working memory and attention differences can play a role. A thought that isn't written down or acted on right away can easily be crowded out by the next one.
ADHD forgetting things can look like:
forgetting a task halfway through
walking into a room and not remembering why
missing appointments or deadlines
forgetting what someone just said
losing track of something while it's still in your hand
If it feels like people with ADHD forget everything, it can seem that way on hard days. Why do people with ADHD forget everything at times? Often, it's that everything is competing for the same small space at once.
The shame of being called careless
Losing things over and over can take an emotional toll. You may have grown up hearing that you were lazy, careless or not trying hard enough. As an adult, you might feel embarrassed in front of coworkers, or frustrated with yourself every time you search for your phone again.
That shame can make things harder. Stress and self-criticism don't improve memory, and they can make you avoid tasks altogether. Understanding that this is linked to how your brain works, not to your character, can be a relief.
If you're a partner or family member, try to respond with patience rather than blame. "Let's look together" can go a lot further than "Again?"
Small systems that help
You don't need to become a different person. Small changes to your environment often work better than trying harder. A few ideas:
Give key items one home. Choose one spot for your keys, wallet and phone, near the door, and use it every time.
Keep things visible. Open shelves, clear containers and hooks can help with the out of sight, out of mind problem.
Build a door routine. Before you leave, pause and check the same few items in the same order.
Pause at transitions. When you walk in the door, take a breath and put things away before doing anything else.
Keep backups where it makes sense. A spare charger in the car or a second set of keys with someone you trust can reduce panic.
Write it down right away. Paper lists or notes in a set spot can hold what your working memory can't.
Pick one or two to try. You don't need a perfect system, just one that works a little better than before. If a system stops working after a few weeks, that's common too. Novelty can wear off, and it's okay to switch things up rather than give up.
When to think about an assessment
If losing and forgetting things has been part of your life since childhood, shows up at home, work and in relationships, and comes with other challenges like trouble focusing or staying organized, it may be worth looking into an assessment for ADHD.
An assessment can help you understand what's going on and point you toward the right support. We offer assessments for adult ADHD, and assessments for children and teens ages 6 and up, at our Kitchener-Waterloo, Cambridge and Ottawa offices.
How counselling for ADHD helps
Whether or not you've been diagnosed, counselling can help you understand how your brain works, build routines that fit your life, and quiet the shame that often comes with ADHD. A counsellor can help you work out which strategies suit you and what to do when they stop working.
We offer counselling for ADHD at all three offices and online anywhere in Ontario. If you live in eastern Ontario, our post on ADHD therapy in Ottawa explains our support there.
Sessions with our therapists range from $130 to $200, depending on the clinician.
Depending on your plan, insurance may cover some or all of the cost. Coverage varies, so check your plan.
We accept Health Spending Accounts (HSAs).
We can direct bill many insurers, including for sessions with a Registered Psychotherapist (Qualifying). Desjardins is the exception: through TELUS eClaims, we can direct bill Desjardins for sessions with an RSW, RP or psychologist, but not for an RP (Qualifying).
Book a free 15-minute consultation with our admin team. Our team can help you decide whether an assessment, counselling or both is the right first step.
Losing things doesn't make you careless or broken. With understanding and a few supports, everyday life can start to feel a lot less frantic.
Last reviewed: October 2026
Sources
ADHD in Adults: 4 Things to Know, National Institute of Mental Health (NIMH)
Attention deficit hyperactivity disorder, MedlinePlus, U.S. National Library of Medicine (NIH)