If you’re too high right now, the most important thing to know is that the feeling will pass and you are safe. There is no lethal dose of cannabis. What you’re experiencing is temporary, and there are several things you can do right now to take the edge off and feel more comfortable while your body processes the THC.
How Long the High Will Last
How quickly you’ll feel normal again depends on how you consumed cannabis. If you smoked or vaped, effects typically peak within 30 minutes and can last up to 6 hours total. If you ate an edible, the peak can take up to 4 hours to hit, and the full experience can stretch to 12 hours. Some mild residual effects, like brain fog or fatigue, can linger up to 24 hours with either method.
This timeline matters because if you ate an edible and you’re only an hour in, you may not have peaked yet. Knowing that can help you mentally prepare rather than panic when the intensity shifts. If you smoked and it’s already been an hour or two, you’re likely on the downslope.
Cold Water on Your Face
One of the fastest physical interventions is splashing cold water on your face, especially around your nose and eyes. This triggers something called the mammalian dive reflex, a built-in survival mechanism that slows your heart rate, redirects blood flow to your brain and heart, and shifts your nervous system out of fight-or-flight mode into a calmer state. It works within seconds and can noticeably reduce the racing heart and panic that come with being too high.
You can splash cold water from the sink, press a cold wet towel against your face, or hold a bag of frozen vegetables against your forehead and cheeks. Focus on the area around your nose and eyes, where the reflex is strongest.
Breathe Slowly and Deliberately
Your breathing is the one part of your nervous system you can directly control. Slow, steady breathing sends a signal to your brain that the threat isn’t real. Try this: inhale slowly for 3 to 4 seconds, hold for a second or two, then exhale for 3 to 4 seconds. Place a hand on your stomach and feel it expand with each breath. Continue until the lightheadedness fades and your breathing feels natural again.
If that feels too simple or you need more focus, try alternate nostril breathing. Close one nostril, inhale slowly through the other for 2 to 4 seconds, hold briefly, then exhale. Do this twice, then switch sides. The concentration required to do this gives your mind something concrete to latch onto, which pulls you out of spiraling thoughts.
Use Grounding Techniques
When you’re uncomfortably high, your mind can detach from your surroundings, which feeds anxiety. Grounding techniques reconnect you to the physical world. The 5-4-3-2-1 method is a good one: identify five sounds you can hear, four textures you can touch, three objects you can see, two scents you can smell, and one taste in your mouth.
Other options that work quickly: run your hands under cold or warm water and focus on the temperature. Pick up objects near you and trace their shape with your fingers. Pet your dog or cat. Even pacing around the room while naming things you pass can pull your attention out of your head and back into reality. The goal is to give your brain sensory input that competes with the internal chaos.
Eat Something and Drink Water
Cannabis can cause your blood sugar to drop, and some of the unpleasant symptoms of being too high, like dizziness, shakiness, and feeling faint, overlap with low blood sugar symptoms. Eating a snack, particularly something with sugar and carbohydrates, can help stabilize how you feel physically. Fruit, juice, crackers, or a handful of candy are all fine choices.
Dehydration also makes everything worse. THC commonly causes dry mouth, and if you haven’t been drinking water, mild dehydration can amplify the headache, dizziness, and general discomfort. Sip water or juice steadily. Avoid alcohol, which will intensify the high rather than reduce it.
Try Black Pepper or Lemon
This one sounds like folk wisdom, but there’s a plausible reason it works for some people. Black pepper contains a terpene called beta-caryophyllene that interacts with the same receptor system THC targets. Chewing on a few black peppercorns or simply sniffing ground black pepper has been widely reported to take the edge off anxiety during a high. The sharp sensory jolt also serves as a grounding tool on its own.
Lemons contain limonene, a terpene associated with mood elevation and alertness. Smelling lemon peel, squeezing lemon into water, or even just holding a cut lemon under your nose can shift your sensory experience. Whether the terpene itself is doing the heavy lifting or the strong citrus scent is simply snapping you back to the present, many people find it helps.
CBD May Blunt THC’s Effects
If you have CBD oil, tincture, or a CBD-dominant product available, it may help reduce the intensity of your high. CBD binds to a different spot on the same receptor that THC activates and changes the receptor’s shape in a way that makes THC less effective at stimulating it. Essentially, CBD acts like a dimmer switch on THC’s signal, nudging the receptor toward an inactive state and reducing the psychoactive intensity.
This won’t work instantly if you take it orally, since CBD needs time to absorb. A sublingual tincture held under the tongue will kick in faster than a gummy or capsule. If you’re planning future cannabis use and tend to get uncomfortably high, choosing products with a balanced THC-to-CBD ratio can prevent the problem in the first place.
Move Your Body
Physical activity triggers the release of endorphins, your body’s natural feel-good chemicals, which can counterbalance THC-driven anxiety. You don’t need to do anything strenuous. A short walk around your yard, some slow stretches, or a few minutes of gentle yoga can help. If you don’t feel safe going outside, pace around the living room, do jumping jacks, or jog in place.
Movement also serves as distraction. When your brain is focused on coordinating physical effort, it has fewer resources to devote to paranoid or anxious thought loops. Even standing up and changing rooms can break the cycle.
What About Pine Nuts?
You may have seen advice to eat pine nuts to counteract a high. The theory was that pine nuts contain alpha-pinene, a terpene thought to protect memory and cognitive function by preserving a brain chemical involved in learning. A controlled study tested this directly, giving participants THC with varying doses of alpha-pinene, at levels matching and exceeding what’s naturally found in cannabis. The result: alpha-pinene did not reduce THC’s effects on memory, cognition, or any other measured outcome. This one is worth skipping.
Talk Yourself Through It
A significant portion of a bad high is psychological. THC activates brain areas involved in threat detection, which is why paranoia and dread are such common features of overconsumption. Reminding yourself of a few key facts can interrupt the fear cycle: you are not in danger, no one has ever died from a cannabis overdose, and this feeling has a defined endpoint.
Try sitting somewhere comfortable, closing your eyes, and repeating a simple phrase like “I’m safe, this will pass, I’ll feel better soon.” Say it out loud if that helps. Breathing slowly while you do this reinforces the message to your nervous system. If you’re with someone you trust, telling them you’re feeling too high and asking them to sit with you can make a meaningful difference. Sometimes just saying it out loud takes away some of its power.
Signs That Need Medical Attention
The vast majority of “too high” experiences are unpleasant but not dangerous. However, if you’re vomiting repeatedly and can’t keep water down, that’s worth taking seriously. Prolonged forceful vomiting from heavy, regular cannabis use can cause dehydration severe enough to need treatment, and in rare cases can injure the esophagus. If vomiting won’t stop, you’re experiencing severe abdominal pain with a rigid stomach, or you notice an irregular heartbeat that doesn’t settle down, those are reasons to seek help.