Physical Activity's Role in Therapy

Let's get the disclaimer out of the way. Exercise is not a replacement for therapy or medication. If you're significantly depressed or anxious, "have you tried exercise?" is both condescending and incomplete.

That said.

The evidence on physical activity and mental health is strong enough at this point that it deserves a serious place in the conversation, not just a passing mention. For mild to moderate depression, exercise performs comparably to antidepressant medication in multiple meta-analyses. For anxiety, it reduces symptoms reliably. For overall stress, trauma recovery, sleep, cognitive function, and resilience, it helps in ways that are hard to overstate.

Why?

Several mechanisms, probably working together.

Neurochemistry. Exercise changes brain chemistry in ways similar to, but via different pathways than, medication. Increased BDNF (a protein that supports neuron growth and connectivity). Increased endorphins. Shifts in dopamine and serotonin systems. It's not "runner's high" as a vague feel-good — it's measurable neural change.

Nervous system. Regular movement helps the autonomic nervous system regulate more flexibly. It gives the body a way to discharge accumulated stress energy, which otherwise stays stored.

Inflammation. Chronic low-grade inflammation is increasingly implicated in depression. Exercise reduces it.

Self-efficacy. Doing hard physical things, consistently, rebuilds the felt sense of capability. This matters for people whose depression has eroded their sense of agency.

Sleep. Physical activity improves sleep, and sleep improves everything.

Here's the part that gets less discussed: the type of movement that works best is often not what people assume.

You do not need to do intense cardio. You do not need a gym. The research suggests that consistency matters more than intensity, and that movement you actually enjoy — or at least don't hate — matters more than movement that's optimally efficient. A daily walk you'll actually take beats a CrossFit program you'll abandon in three weeks.

For people with depression specifically, low-intensity movement — walking, yoga, gentle hiking — is often more sustainable than high-intensity workouts, which can feel impossible when your energy is already depleted. The goal is to move. The goal is not to become an athlete.

For people with anxiety, something different is often true. Some kinds of intense exercise can help specifically because they discharge the physiological activation anxiety produces. A hard run can do for an anxious body what talking can't.

For trauma, somatic movement practices — yoga, tai chi, certain kinds of dance — tend to be more helpful than high-intensity work, which can re-activate threat responses.

The common thread: movement is medicine, and like any medicine, the specific dose and type matter.

If you're in therapy and not moving much, your therapist and your body are probably working against each other. Bringing the body into the plan isn't optional. It's part of the treatment.

We'll always consider the body as part of the picture, not separately. If you want an integrative approach, let's talk.