Certain everyday habits, from your morning coffee to how you spend time on your phone at night, can quietly fuel anxiety or make existing symptoms harder to manage. Some are obvious, others are surprising, and a few are things people actively turn to for relief that end up backfiring. Here’s what to cut back on or rethink if anxiety is part of your life.
Caffeine, Especially Above 400 mg
Caffeine is a stimulant that increases heart rate, triggers the release of stress hormones, and can produce physical sensations almost identical to a panic attack: racing heart, jitteriness, shallow breathing. A meta-analysis published in Frontiers in Psychology found that even doses below 400 mg moderately increased anxiety scores in healthy people with no psychiatric history. Above 400 mg, roughly four standard cups of coffee, the effect was dramatically larger. For people who already have an anxiety disorder, sensitivity can kick in at much lower doses.
The tricky part is that caffeine hides in places beyond your coffee mug. Tea, energy drinks, chocolate, pre-workout supplements, and some over-the-counter pain relievers all contribute to your daily total. If you’re dealing with anxiety, tracking your combined intake for a few days can be revealing. You don’t necessarily need to quit entirely, but staying well under 400 mg and avoiding caffeine after early afternoon tends to make a noticeable difference.
Alcohol and the Rebound Effect
A drink may feel calming in the moment, and there’s a real neurochemical reason for that. Alcohol enhances the activity of your brain’s main calming chemical, GABA, which reduces neural excitability and produces that familiar sense of relaxation. The problem starts a few hours later. As your body processes the alcohol, it compensates by ramping up excitatory brain activity to restore balance. The result is a nervous system that’s now more reactive than it was before you drank.
This rebound effect is why many people wake up at 3 a.m. after drinking, heart pounding, mind racing, sometimes with a sense of dread that feels completely detached from anything real. The informal term “hangxiety” describes this well. With regular drinking, the brain adapts further: GABA receptors become less responsive, meaning your baseline anxiety creeps higher over time and alcohol stops providing even temporary relief. For anyone managing anxiety, alcohol is one of the most counterproductive substances available, despite how it feels in the first hour.
Nicotine’s False Promise
Smoking or vaping feels like it takes the edge off, which is why so many people with anxiety use nicotine as self-medication. But nicotine triggers the release of norepinephrine and epinephrine, the same hormones your body produces during a fight-or-flight response. Heart rate increases, blood pressure rises, and muscles tense. Research published in JAMA Psychiatry found that these cardiovascular changes can actually be misinterpreted by the brain as signs of danger, potentially triggering panic attacks in vulnerable people. The “calm” feeling from nicotine is largely just the relief of a withdrawal craving, not a genuine reduction in anxiety.
Sugar Crashes That Mimic Panic
Foods that spike your blood sugar quickly, think sugary drinks, white bread, pastries, and candy, can set off a chain reaction that feels a lot like anxiety. After a rapid blood sugar spike, your body releases a large surge of insulin to compensate. This can overshoot, dropping your blood sugar below normal in what’s called reactive hypoglycemia. Your body responds to that low blood sugar by releasing adrenaline, which causes shakiness, sweating, heart palpitations, and a vague sense of dread.
These symptoms overlap so heavily with anxiety that many people can’t tell the difference. A case study in Case Reports in Psychiatry documented a patient whose generalized anxiety symptoms improved significantly after switching from high-glycemic foods to meals that released energy more slowly. You don’t need to eliminate sugar completely, but pairing carbohydrates with protein, fat, or fiber slows absorption and prevents the sharp spike-and-crash cycle that can leave you feeling panicky between meals.
Doomscrolling and Constant News
Spending long stretches consuming negative news on your phone has a measurable impact on mental health. A study on doomscrolling habits found a significant positive correlation between time spent scrolling negative content and psychological distress, with distress scores nearly 40% higher among frequent doomscrollers. That distress, in turn, was linked to lower life satisfaction, reduced mental well-being, and less overall harmony in daily life. The relationship works as a cycle: anxiety draws you to seek information, the information increases distress, and the distress drives more scrolling.
Setting specific time limits for news consumption, turning off push notifications for news apps, and choosing one or two scheduled check-ins per day instead of a constant feed can break the pattern. The goal isn’t to be uninformed. It’s to stop using your phone as an anxiety amplifier.
Sitting for Long Stretches
Physical inactivity and anxiety have a dose-response relationship, meaning the more you sit, the worse it gets, in a steady gradient. A large study of college students published in Frontiers in Psychiatry found that anxiety prevalence was 17.6% among those sitting seven or more hours per day, compared to just 4.7% among those sitting one to three hours. That relationship held even after accounting for how much exercise people got separately. In other words, a morning workout doesn’t fully cancel out eight hours of sitting.
The most protective combination was sitting less than one hour per day and getting at least seven hours of physical activity per week, but you don’t need to hit that extreme to benefit. Simply breaking up long sitting periods with short walks, standing while on calls, or doing light stretching throughout the day helps reduce the physical tension and mental restlessness that feed anxious thinking.
Avoidance and “Safety” Behaviors
This one is the most counterintuitive because avoidance feels like it’s working. Skipping a party that makes you nervous, canceling plans, staying in your room, procrastinating on a task that triggers worry: these all provide immediate relief. But each time you avoid something, you reinforce the message to your brain that the situation was genuinely dangerous. The fear grows stronger, the list of things you avoid gets longer, and your world shrinks.
Common avoidance behaviors include not speaking up in groups, refusing to enter certain situations, isolating at home, and constantly distracting yourself from anxious thoughts. Some people develop subtler versions, like always bringing a friend to social events, sitting near the exit, or keeping their phone in hand as a security object. These “safety behaviors” prevent you from ever learning that you can handle the situation on your own, which is the experience that actually reduces anxiety over time. Gradual, repeated exposure to feared situations, starting small, is the core mechanism behind the most effective anxiety treatments.
Over-the-Counter Medications to Watch
Some common medications can trigger or worsen anxiety symptoms without you realizing the connection. Decongestants containing pseudoephedrine are the biggest culprit. Pseudoephedrine is structurally similar to amphetamine, and its central nervous system stimulant effects include anxiety, sleep disturbances (reported in over 30% of users), rapid heartbeat, and muscle tremor. If you’re prone to anxiety and reach for a cold medicine, look for formulations without pseudoephedrine, or ask a pharmacist for alternatives.
Combining pseudoephedrine with caffeine, which is present in many OTC pain relievers and energy drinks, intensifies these effects further.
Herbal Supplements That Interact With Medications
St. John’s Wort is widely used as a natural mood support, but it poses a serious risk for anyone taking prescription anxiety or depression medication. Combining St. John’s Wort with SSRIs can dangerously elevate serotonin levels, potentially causing serotonin syndrome, a condition marked by agitation, rapid heartbeat, high blood pressure, muscle twitching, and in severe cases, life-threatening complications. Case reports have most commonly involved the SSRIs sertraline and paroxetine, with St. John’s Wort doses in the typical 600 to 900 mg per day range. If you’re on any prescription medication for anxiety or depression, St. John’s Wort should be off the table entirely.
Poor Sleep as an Anxiety Accelerant
Sleep deprivation doesn’t just make you tired. It fundamentally changes how your brain processes emotions. When you’re sleep-deprived, the part of your brain responsible for detecting threats becomes hyperactive while the part that provides rational perspective goes quieter. The result is that neutral situations start to feel threatening, minor worries balloon into catastrophic ones, and your emotional reactions become harder to regulate. Even a single night of poor sleep can noticeably increase next-day anxiety, and chronic sleep loss creates a feedback loop where anxiety disrupts sleep and poor sleep amplifies anxiety.
Protecting your sleep means more than just going to bed on time. Cutting caffeine after noon, limiting alcohol (which fragments sleep architecture even when it helps you fall asleep), keeping screens out of the bedroom, and maintaining a consistent wake time all contribute to the kind of sleep that genuinely restores emotional resilience.