Bad Habits for Students
The habits that hurt students most aren't the obvious ones. They're the ones that feel like studying. Rereading, highlighting, and all-nighters have a large evidence base showing they underperform. Here's what to drop and what to do instead.
Nail biting
Worth breakingBiting your fingernails or the skin around them, usually without noticing you've started.
Leg shaking
Actually fineBouncing or jiggling your leg while sitting, often without noticing.
Too much caffeine
It dependsLeaning on coffee or energy drinks past the point where they help, chasing alertness that never quite arrives.
Procrastination
Worth breakingHabitually delaying tasks you intend to do, despite knowing you'll be worse off for it.
Napping
Actually fineSleeping briefly during the day, typically in the early afternoon.
Knuckle cracking
Actually finePopping your knuckles by stretching or bending your fingers until they crack.
Hair pulling
It dependsPulling out hair from your scalp, eyebrows, or eyelashes, often during idle or focused moments.
Cheek biting
It dependsBiting or chewing the inside of your cheek, often while concentrating or feeling tense.
Overthinking
Worth breakingReplaying decisions and possibilities in endless mental loops that analyze without concluding.
Skin picking
It dependsPicking at pimples, scabs, bumps, or the skin around your nails, often on autopilot.
Talking to yourself
Actually fineSpeaking your thoughts aloud while working, deciding, searching, or processing the day.
Binge drinking
Worth breakingRegularly drinking large amounts in single sessions: the weekend-heavy pattern that feels normal because everyone around you does it too.
Chewing gum
It dependsRegularly chewing gum throughout the day, often for focus, freshness, or fidgeting.
Slouching
It dependsSitting or standing with a rounded back and shoulders instead of an upright posture.
All-nighters
Worth breakingSkipping an entire night of sleep, usually to study, meet a deadline, or game.
Interrupting
Worth breakingCutting people off mid-sentence to insert your own thought before they finish.
Gossiping
It dependsTalking about people who aren't present, from harmless catching-up to reputation-damaging speculation.
Vaping
Worth breakingHabitual use of e-cigarettes or vapes, often in near-constant small hits throughout the day.
Binge-watching
It dependsWatching multiple episodes of a show back-to-back in one sitting, often unplanned.
Caffeine after noon
It dependsDrinking coffee, tea, or energy drinks in the afternoon or evening.
Carrying a bag on one shoulder
It dependsAlways hauling a heavy bag on the same shoulder instead of balancing the load.
Catastrophizing
Worth breakingJumping from a small setback straight to the worst-case scenario and treating it as likely.
Checking your phone first thing in the morning
Worth breakingReaching for your phone within moments of waking to check messages, email, news, or social feeds.
Comparing yourself on social media
Worth breakingHabitually measuring your life, body, or success against the curated posts you see on social media.
Comparing yourself to others
Worth breakingHabitually measuring your life, progress, and worth against other people's visible results.
Cramming
Worth breakingCompressing all your studying into the night or two before the exam.
Crash dieting
Worth breakingRepeatedly attempting rapid weight loss through severe restriction, followed by rebound.
Daily weed
It dependsUsing cannabis every day, usually evenings, until it's less a choice than the default way a day ends.
Doomscrolling
Worth breakingCompulsively scrolling through negative news and social media feeds long past the point of learning anything useful.
Drowsy driving
Worth breakingDriving while fighting sleep: heavy lids, drifting attention, and miles you don't remember.
Eating too fast
Worth breakingFinishing meals in just a few minutes, often barely chewing or noticing the food.
Emotional eating
Worth breakingEating in response to stress, boredom, sadness, or other feelings rather than physical hunger.
Energy drinks
Worth breakingRelying on canned caffeine-sugar combinations to get through ordinary days.
Gaming too much
It dependsSpending more time gaming than feels healthy, often at the expense of sleep, work, or relationships.
Ghosting
Worth breakingEnding contact (with dates, friends, or commitments) by silently disappearing instead of saying so.
Highlighting everything
Worth breakingPainting the textbook yellow: marking so much that the marks stop meaning anything.
Hitting snooze
It dependsRepeatedly delaying getting up with the snooze button, often for thirty minutes or more.
Holding your pee
It dependsRegularly delaying bathroom trips despite a clear urge to urinate.
Irregular sleep schedule
Worth breakingGoing to bed and waking at widely different times from day to day.
Junk food
Worth breakingRegularly relying on ultra-processed, high-calorie, low-nutrient food as a dietary default.
Late-night snacking
It dependsEating in the hours before bed, typically after dinner while relaxing or working late.
Leaving all notifications on
Worth breakingLetting every app buzz, ping, and banner you throughout the day instead of curating which ones can interrupt.
Mindless snacking
Worth breakingGrazing on food throughout the day without hunger, attention, or a real decision to eat.
Missing deadlines
Worth breakingRegularly delivering work after the date you committed to.
Multitasking
Worth breakingJuggling several tasks at once, or rapidly switching between them, instead of finishing one at a time.
Negative self-talk
Worth breakingA harsh inner voice that narrates your day in criticism: idiot, failure, of course you messed up.
Nicotine pouches
Worth breakingUsing nicotine pouches habitually: invisible, ever-present dosing that never has a reason to stop.
No study schedule
Worth breakingStudying whenever it happens to happen, which reliably means late, rushed, or not at all.
Not drinking enough water
Worth breakingGoing through the day chronically under-hydrated, often drinking mostly coffee or soda instead.
Not exercising
Worth breakingGoing weeks or months without any deliberate physical activity.
Not flossing
Worth breakingSkipping flossing, leaving the spaces between your teeth uncleaned day after day.
Not taking notes
It dependsSitting through lectures empty-handed, trusting that understanding in the moment will still be there at exam time.
One-upping
Worth breakingResponding to someone's story or struggle by topping it with your own bigger one.
Over-apologizing
Worth breakingSaying sorry reflexively: for asking questions, taking up space, or things that aren't your fault.
Overeating
Worth breakingRegularly eating past the point of comfortable fullness, often without noticing until afterward.
Oversharing
It dependsRevealing personal details faster or more widely than the relationship or setting calls for.
Oversleeping
It dependsRegularly sleeping well beyond nine or ten hours, or far past intended wake times.
Passive re-reading
Worth breakingReading notes and textbook chapters over and over, hoping repetition turns into memory.
Perfectionism
It dependsHolding your work to extremely high standards and struggling to call anything finished.
Revenge bedtime procrastination
Worth breakingStaying up late scrolling or watching shows to reclaim personal time, despite needing sleep.
Screens before bed
Worth breakingUsing phones, tablets, or laptops in the hour before sleep, usually in bed.
Seeking validation
It dependsNeeding regular external approval (likes, reassurance, compliments) to feel okay about your choices.
Shallow breathing
Worth breakingHabitually taking quick, shallow chest breaths instead of slower, deeper ones.
Short-form video loops
Worth breakingGetting stuck watching an endless stream of short videos on TikTok, Reels, Shorts, or similar feeds.
Sitting all day
Worth breakingSpending most of your waking hours seated, with few breaks for standing or movement.
Skipping breakfast
It dependsRegularly starting the day without eating until midday or later.
Skipping class
Worth breakingMissing lectures with the standing promise to catch up from slides or recordings later.
Skipping meals
Worth breakingIrregularly missing meals due to busyness, stress, or forgetting to eat.
Sleeping in on weekends
It dependsSleeping hours later on weekends than on weekdays.
Studying in bed
It dependsDoing your reading, notes, or laptop work from under the covers.
Studying with your phone
Worth breakingKeeping your phone next to you while studying: each glance small, the aggregate devastating.
Tech neck
Worth breakingCraning your head down at a phone or laptop for long stretches of the day.
Teeth grinding
Worth breakingClenching or grinding your teeth, during the day or (very commonly) while you sleep.
Touching your face
Worth breakingResting hands on your face or rubbing your eyes, nose, and mouth throughout the day.
Using your phone in bed
Worth breakingScrolling, watching, or messaging on your phone after getting into bed, usually right before sleep.
Breaking a habit sticks when you track the replacement.
Decide what you'll do instead, then track it daily. A visible streak turns one good decision into a system.
Start tracking free on HabitTracker.io →