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August 26, 2026

What If the Eating Disorder Comes Back to School With You?

Clinically reviewed by Jillian Lampert, PhD, MPH, RD, LD, FAEDLast reviewed August 27, 2026
What If the Eating Disorder Comes Back to School With You?

You might have started the new school year knowing you were struggling with an eating disorder. Or you might only be beginning to suspect that something isn’t right.

Either way, maybe you hoped the routine would help: that classes, friends, and a full schedule would leave less room for it. Maybe you decided you could manage for now and wait to see whether things got “serious enough.” When getting help could mean missing class or watching everyone else keep going without you, waiting can feel like the safer choice.

Postponing help doesn’t protect your school year from an eating disorder. Left untreated, these illnesses can interfere with everything you’re trying to protect: your focus, your health, your friendships, and your ability to participate in school.

Untreated eating disorders affect nearly every part of student life. They can impair concentration, memory, and academic performance, strain physical health, and pull students away from friends and activities. Getting eating disorder treatment early, whether you’re in high school or college, is the most effective way to limit that harm and protect your school year.

How Eating Disorders Affect Concentration, Memory, and Grades

It’s a Tuesday night in September, a few weeks into the semester. You’re at your desk with the assigned reading open in front of you: a handful of pages that shouldn’t take long.

But partway through the second sentence, your brain is somewhere else, running the numbers on what you ate today, whether it was too much, what it means for tonight. You blink back and realize you’ve reached the bottom of the page without taking in a word of it. So you start over. You read the page a third time, a fourth. Before you know it, an hour has slipped by, and you’re no further than where you started.

When an eating disorder follows you to school, that Tuesday-night struggle is your brain not getting what it needs to do its job.

Your brain uses more energy than almost any other organ, and it depends on a steady supply of nutrients to function. When an eating disorder disrupts that supply, the brain can’t run at full capacity. The cognitive functions that require the most energy are the first to suffer, including sustained attention, memory, flexible thinking, emotional regulation, and the ability to plan and prioritize. Trouble concentrating and focusing in class is one of the most common ways an eating disorder affects school performance.

On top of that, the eating disorder itself takes up enormous mental bandwidth. Thoughts about food, eating, and often your body run on a loop all day, competing for the same brain space you need for school. This is true across every eating disorder, at every body size.

In a school day, all of this can look like:

  • Replaying what you ate at lunch, comparing your body to the people sitting around you, working out how to get out of your dinner plans, all while the lecture moves on without you
  • Blanking on material you studied for hours the moment the exam is in front of you
  • Spending a whole evening perfecting one minor detail of an assignment while the project due sooner sits untouched
  • Wanting to drop a class after a single low quiz score
  • A small critique from your teacher sending you into an emotional crash that lasts for hours
  • Getting the grade you worked hard for and feeling nothing, or just the exhausting pressure to keep it up

Can you have an eating disorder and still get good grades?

Yes. You might still get straight A’s or make the dean’s list. Neither means your eating disorder is less serious, or that you don’t need treatment. Plenty of people who develop eating disorders are strong students who maintain a high GPA even as their illness gets worse. But the cost is much greater: schoolwork consumes more time and effort than it should, and the hours and energy that could go to connecting with friends, pursuing interests, or resting are instead devoted to keeping your grades up.

Your transcript, no matter how good it is, cannot reliably reflect what the eating disorder is doing to your health and wellbeing.

The Physical Effects of an Eating Disorder at School

If you’re at school with an untreated eating disorder, you’re there in a body that’s already under strain, even if it doesn’t feel that way yet. Common physical symptoms of eating disorders include fatigue and low energy, frequent headaches or dizziness, or GI issues like stomachaches, bloating, and constipation.

The physical symptoms of an eating disorder can dictate the trajectory of your semester. Sitting through class when you’re nauseous, freezing, exhausted, or dealing with acid reflux is uncomfortable, and sometimes nearly impossible. Unlike a one-off stomachache or the brain fog from a few bad nights of sleep, an eating disorder’s physical symptoms are persistent, and they get worse the longer they go unaddressed. That can mean more absences, canceled plans, dropping the sport or activity you used to love, and, in some cases, an emergency medical leave.

Even if your symptoms don’t seem “bad” to you right now, eating disorders tend to get worse without treatment. The longer you spend convincing yourself that you’re not “sick enough,” the more damage they can do, including to your heart, kidneys, bones, and reproductive system. These complications can be serious and potentially life-threatening at any weight or body size.

The earlier an eating disorder is treated, the less opportunity it has to do lasting physical harm. Early intervention consistently leads to better outcomes and a fuller recovery.

How Eating Disorders Affect Friendships and Social Life

An eating disorder pulls you away from people on purpose.

By eating disorder logic, you’re safer alone, where no one can question or interfere with how you eat, how you exercise, or how you relate to your body. Social withdrawal and isolation keep disordered thoughts and behaviors from being noticed and challenged. As the eating disorder pushes you toward disconnection, it starts making your day-to-day decisions. Suddenly, you’re finding reasons to skip cafeteria lunches or late-night food runs with friends. You drop the after-school club you used to love. You pass on spontaneous plans and chances to meet new people. Choices get filtered through a lens of shame, secrecy, and self-protection.

An eating disorder also doesn’t leave much energy for anything and anyone else. Even the friends you came back to school for can start to feel like too much, especially when the places you’d naturally see them (the lunch table, postgame meals, birthday dinners) revolve around food.

If part of your reason for going back to school was being around the people you missed over the summer, an untreated eating disorder takes that from you, too.

Why School Can Worsen an Eating Disorder

School concentrates the exact conditions that can intensify eating disorder symptoms:

  • Big transitions: a new school, a new schedule, and for college students, moving away from home or living with roommates
  • New academic pressure and workload
  • Scattered meal times, under time pressure, with less choice over what’s available
  • Eating in front of other people, or figuring out where and with whom to eat
  • Less privacy in locker rooms, communal bathrooms, and shared living spaces
  • Team sports, gym class, or campus fitness culture that centers bodies and performance
  • Constant comparison with the people you see every day, in person and online
  • Fewer check-ins from people who would notice changes in you

You can feel ready for the year ahead and still be walking into conditions that make an eating disorder worse. And these stressors don’t ease up as the months roll by. If anything, they stack.

Don’t Wait to Get Help for an Eating Disorder

An eating disorder may tell you there’s plenty of time: just get through this week, this project, this season, this semester. Wait until your grades slip, someone says something, or you’re sure things are “bad enough.” You don’t have to reach a crisis point or even be sure you have an eating disorder to ask for help.

If food, eating, exercise, or your body is taking up more of your life than you want, tell someone. If you’re in high school, that might be a parent or caregiver, school counselor, nurse, coach, teacher, or another adult you trust. If you’re in college, it might be someone at your campus health or counseling center, a coach, RA, professor, friend, or family member.

You can also reach out to The Emily Program directly. We provide eating disorder treatment for teens, college students, and adults at every level of care. Call 888-364-5977 or fill out our online form to get started. You don’t need to wait for an eating disorder to take more from your health, your relationships, or your school year. You deserve support now.