ADHD in Teenagers: Symptoms, Risks and What Families Can Do

A child described in primary school as "a little dreamy but getting by" can turn, in the second year of middle school, into a teenager whose grades drop, who misses homework, who cannot get up in the morning and who does not come out of their room.

Families often attribute this change to adolescence itself. Some of it truly is. But some of it is ADHD, which ran relatively quietly in childhood, becoming visible once the load increases.

I was not diagnosed in that period. My grades did not drop and I did not cause trouble. What happened was quieter: every assignment slid to the last night, every exam was taken on knowledge learned the night before, and I assumed this was how it was for everyone. As long as I could get things done in time, I stood in a place nobody looked at.

I wrote this article partly for that reason: the cost of being overlooked in adolescence is not paid in that period. It is paid later.

How it differs from childhood

The form of ADHD symptoms changes in adolescence.

Restlessness decreases. Getting up in class, running and climbing decrease markedly in most teenagers. Inner restlessness, boredom and the need for constant stimulation take their place.

Attention and organization come to the front. Several classes, projects, exam dates, courses and a social life have to be managed at the same time. The load on executive functions suddenly rises.

The expectations change. In childhood it is generally an adult who reminds about homework, packs the bag and keeps the calendar. In adolescence this support is expected to be withdrawn and the teenager to manage their own work. For a teenager with ADHD this transition often comes early.

Long-term follow-up studies show that the course of ADHD can fluctuate: symptoms can ease in some periods and become prominent again in others (Sibley et al., 2022). Adolescence is one of the periods in which these fluctuations are common.

What happens at school

In adolescence, school is where ADHD is most visible.

• Keeping track of homework and projects. Missing dates, leaving things half done, trying to catch up on the last night.
• Long texts and exams. As the reading load grows, sustaining attention gets harder.
• Uneven grades. Very good in a class that interests them, very low in the others.
• Being late in the morning. The sleep schedule, which already shifts in adolescence, can shift even more in ADHD.
• Comments like "he's not using his potential." The teenager seems intelligent but the results do not come. I heard this sentence a lot too, and for years I took it as a compliment. In fact it was an attempt at a diagnosis, and it was looking in the wrong place.

The clinical guideline of the American Academy of Pediatrics recommends that, when evaluating adolescents, information be gathered not only from the family but from at least two teachers or school staff, and that substance use and risky behaviors also be asked about (Wolraich et al., 2019).

The accommodations at school and the approaches that work for students are covered in detail in the article on ADHD at school and university.

Risks specific to adolescence

In adolescence, some risks gain importance when combined with ADHD.

Traffic. Driving-licence age combines with symptoms of inattention and impulsivity. The review by Barkley and Cox (2007) shows that traffic violations and crash rates are higher in ADHD and that stimulant medication can improve driving performance. Phones at the wheel, night driving and driving with friends are areas that need particular care.

Smoking and substance use. The meta-analysis by Lee and colleagues (2011) shows that people diagnosed with ADHD in childhood are more likely to use nicotine and certain substances in adolescence and adulthood. The details are in the article on ADHD and smoking.

Risky behaviors. When impulsivity and stimulation seeking combine with the adolescent tendency to test limits, risky social and sexual behaviors can increase.

Mood swings. Adolescence itself is an emotionally intense period. The difficulty with emotion regulation in ADHD can make this even more pronounced.

Inward-turning risks in girls. The long-term follow-up study by Hinshaw and colleagues (2012) shows that girls with ADHD carry a higher risk of anxiety, depression, eating problems and self-harm in young adulthood.

Do not put these signs off. If there are signs of self-harm, a long-lasting low mood, serious substance use or suicidal thoughts in a teenager, this is not something to wait on. A child and adolescent psychiatrist needs to be seen. In an emergency in Türkiye you can call 112.

How the family should approach it

In adolescence the role of the family changes but does not end.

Hand over control gradually, not all at once. Pulling away the structure the family built in childhood in one go usually ends in collapse. A staged transition works better: building the calendar together, then watching the teenager keep it, then letting go completely.

Build the system together. Phone reminders, a shared calendar, a short weekly review. When a teenager builds the system themselves, they are more likely to own it.

Solve the problem instead of blaming. The sentence "you forgot again" often leads to defensiveness and shutting down. The question "what would help so you don't miss this again?" opens more doors.

Keep their strengths visible. A teenager who is corrected constantly can begin to define themselves as "the problem." Noticing and saying out loud the areas where they are good helps protect self-worth.

Protect sleep. Charging screens outside the bedroom, preventing the weekend sleep schedule from drifting too far. As sleep deteriorates, every symptom gets heavier. The details are in the article on ADHD and sleep.

Include the teenager in decisions. Asking for the teenager's view when treatment, medication or school accommodations are discussed also increases adherence to treatment.

Why the teenager who gets by is overlooked

I am writing this section from my own experience, because this is the point at which the delay is greatest.

Nobody looks for anything in a teenager whose grades are going well. Yet what stands behind a grade can be very different: studying squeezed into the last night, a compensation system that is constantly on alert, and an exhaustion that never shows on the outside.

There are a few signs families can look at, and none of them is written on a report card:

• Does the work always get finished on the last night, or can it be spread out?
• After a week of catching up, how many days do they spend collapsed?
• Is the difference between a class they like and one they don't explainable by effort?
• Is order in their room and bag established only when they are reminded?

The answers to these questions say more than a grade average. This is how the quiet presentation works; I covered it in detail in the article on inattentive ADHD.

Does treatment change in adolescence

Guidelines recommend that in adolescents too, psychoeducation, medication if needed, and behavioral interventions be considered together (Wolraich et al., 2019).

There are a few matters specific to adolescence:

• Adherence to treatment. Teenagers may want to stop taking medication. Talking about the reasons and making the decision together is important.
• Skills-focused support. Work on study, time management and planning skills is particularly helpful in this age group.
• Co-occurring conditions. Anxiety, depression and learning difficulties can become more pronounced in adolescence and should be evaluated separately.

The decision and choice of medication is the physician's job; the framework is in the article on ADHD medication treatment.

If this period coincides with the LGS year (the national high school entrance exam in Türkiye), I covered the process in detail in the LGS article.

What stays with me

In adolescence ADHD shows itself less through movement and more through problems of organization, time and attention. The growing school load and expectation of independence can strain teenagers who were getting by before. The risks change too: traffic, substance use and emotional difficulties come to the front.

The path that helps a family most is to hand control over to the teenager gradually rather than pulling the structure away all at once, and to do it by solving problems together rather than by blaming.

If a teenager has no answer to the question "why can't I do it like everyone else," they answer it themselves, and the answer they find is often wrong. What is missing is often not just a diagnosis; it is an answer to that question.

Not letting a teenager answer that question alone may be the most valuable thing that can be done in this period.