You're sitting in a meeting, waiting room or lecture, and your knee is bouncing again. Maybe someone nudges you, or you catch it in the corner of your eye and stop, only to start again a minute later. For many people, leg shaking is so automatic that they don't notice it at all. This post explains why people with anxiety shake their legs, why it can feel oddly soothing, what it might mean and how to settle restless energy when it builds.
This post is general information, not medical advice or a diagnosis. Leg shaking doesn't always mean anxiety.
Leg shaking and anxiety, in plain words
Anxiety isn't only in your thoughts. It shows up in the body too. The U.S. National Institute of Mental Health (NIMH) lists feeling restless or having trouble relaxing, feeling "on edge" and trembling or twitching among the signs of generalized anxiety. The World Health Organization (WHO) also lists feeling tense or restless, and trembling or shaking, as possible symptoms of anxiety disorders.
So, can leg shaking be a sign of anxiety? It can be one way restless energy comes out. But on its own, a bouncing leg doesn't tell you much. Plenty of people shake their legs when they're bored, focused, cold or simply in the habit.
Fight or flight and the body's extra energy
When your brain senses a threat, even a small one like a tough email or a crowded room, it can switch on the body's fight-or-flight response. NIMH describes fear as part of this response, which helps us avoid or respond to danger.
Fight or flight gets the body ready to move: muscles tense, the heart speeds up and energy builds. But in most modern situations, you're not running or fighting. You're sitting still. That extra energy has to go somewhere, and for many people it goes into a tapping foot or a bouncing knee.
If you've ever asked, "Why does my leg shake when I have anxiety?", this is often the answer. Your body is preparing for action with nowhere to go, and the extra energy leaks out through small, repeated movements like tapping, bouncing or fidgeting.
Why bouncing a leg can feel soothing
Many people notice that shaking their leg actually helps them feel a little calmer or more focused. Small, rhythmic movements can be a way the body releases tension and settles itself, a bit like rocking or pacing.
Why do people with anxiety bounce their legs, then? Often because it works, at least a little. It's not a bad habit to be ashamed of. It can be your body's own attempt to cope.
Anxiety leg shaking at night
Some people notice leg shaking most when they finally lie down. During the day, distractions keep anxious thoughts at bay. At night, with fewer distractions, worries can get louder, and the body may stay on alert.
If anxiety leg shaking at night happens alongside a racing mind, it may be part of a bigger pattern of worry. NIMH lists trouble falling or staying asleep among the signs of generalized anxiety. This post focuses on the anxiety side only, but if night-time restlessness keeps coming up, it's worth talking about with a counsellor.
Is it anxiety, ADHD or just a habit?
Does shaking your leg mean you have anxiety? Not necessarily. Leg bouncing can come from many places:
Anxiety: restless energy that rises with worry or stress
Focus and attention: some people move to help themselves concentrate, including some people with ADHD
Boredom or excitement: extra energy with nowhere to go
Habit: a movement that's become automatic over time
Context matters. Does it show up mostly when you're stressed or worried? Does it come with racing thoughts, tension or dread? That's when anxiety is more likely part of the picture.
When the shaking feels different
Leg shaking can have causes that have nothing to do with anxiety. If the movement feels different from ordinary restlessness, comes with other new physical symptoms or doesn't match the patterns described here, don't assume it's "just anxiety." If you ever have sudden, severe symptoms, call 911.
Notice your own patterns
A little curiosity can tell you a lot. For a week or two, notice when your leg starts bouncing. Common moments include:
waiting rooms, line-ups and long meetings
before a phone call, presentation or hard conversation
scrolling the news or checking email
lying in bed at the end of a busy day
Ask yourself what you were thinking or feeling just before. If the shaking clusters around stress and worry, that's useful information. It can also help you spot anxiety earlier, before it builds.
When other people notice
Some people feel self-conscious when a partner, coworker or teacher points out their bouncing leg. If it bothers you, try a quieter movement, like pressing your toes into the floor or gently rolling your ankle. If it doesn't bother you or anyone nearby, it's okay to let it be. You can also simply say, "It helps me think." There's nothing shameful about how your body manages stress.
Ways to settle restless energy
You don't need to stop your leg from moving. But if restless energy feels uncomfortable, a few gentle ideas can help:
Slow your breathing. Try breathing in for four counts and out for six. A longer exhale can help your body settle.
Move on purpose. A short walk, stretching or climbing a flight of stairs can burn off built-up energy.
Ground through your feet. Press both feet into the floor and notice the pressure and support.
Tense and release. Squeeze your leg muscles for a few seconds, then let them go.
Check in with yourself. Ask, "What am I worried about right now?" Naming it can take some of the edge off.
The WHO suggests habits like regular physical activity and relaxation techniques such as slow breathing for managing anxiety in daily life.
When it's part of bigger anxiety
Sometimes leg shaking is one small sign of anxiety that's affecting much more: constant worry, trouble relaxing, tension, irritability or feeling on edge most days. Many people with this kind of anxiety still look calm and capable on the outside. Our post on anxiety that looks calm on the outside describes how that can look.
If anxiety ever leads to thoughts of suicide or self-harm, call or text 9-8-8 right away, any time.
How counselling helps
Counselling can help you understand what's driving your anxiety and build ways to calm both your mind and body. Approaches like CBT help with anxious thinking patterns, while somatic therapy focuses on the body's stress responses, including restlessness and tension. Learn more about somatic therapy in Ottawa.
We offer anxiety counselling, including CBT and somatic approaches, at our Kitchener-Waterloo, Cambridge and Ottawa offices, and online anywhere in Ontario.
Sessions with our therapists range from $130 to $200, depending on the clinician.
Depending on your plan, insurance may cover some or all of the cost. Coverage varies, so check your plan.
We accept Health Spending Accounts (HSAs).
We can direct bill many insurers, including for sessions with a Registered Psychotherapist (Qualifying). Desjardins is the exception: through TELUS eClaims, we can direct bill Desjardins for sessions with an RSW, RP or psychologist, but not for an RP (Qualifying).
Book a free 15-minute consultation with our admin team. "I'm always on edge, and my body can't settle" is enough.
If you're in crisis: if you or anyone else is in immediate danger, call 911. If you're having thoughts of suicide or self-harm, call or text 9-8-8 any time, day or night. Our crisis lines page lists both.
Last reviewed: October 2026
Sources
U.S. National Institute of Mental Health (NIMH), Generalized anxiety disorder: when worry gets out of control
World Health Organization (WHO), Anxiety disorders fact sheet
U.S. National Institute of Mental Health (NIMH), Post-traumatic stress disorder