Intense exercise: discharge the physiological arousal with brief intense movement

Do 20 jumping jacks, sprint for a minute, or any intense exercise to burn through the stress-response chemicals.

Why it works

Acute emotional distress is accompanied by sympathetic nervous system activation: elevated cortisol, adrenaline, and glucose mobilized for action. If no action occurs, these stress hormones and the physical tension they produce remain unresolved. Brief intense exercise uses the mobilized resources for their physiological purpose — physical exertion — which allows the sympathetic activation to complete its arc and subside, rather than stay elevated.

How to do it

1. Do any brief intense movement: jumping jacks, running in place, push-ups, sprinting, brisk stair climbing.
2. Aim for enough intensity that your heart rate noticeably rises — typically two to five minutes.
3. Stop when you notice the physical tension beginning to ease.

Evidence

Acute exercise reliably reduces cortisol, adrenaline, and anxiety after the exercise bout; the anxiolytic effect of a single exercise session is well documented across multiple study designs. The mechanism aligns with the stress-response completion model. (observational)

Evidence is for exercise’s effect on anxiety and stress broadly; DBT’s use of it as a brief crisis intervention follows the same physiology but is less specifically trialed at that short duration.

Sources

• Anderson & Shivakumar (2013), effects of exercise on stress and anxiety, Current Psychiatry Reports

Common mistake

Choosing low-intensity movement ("a gentle walk") when arousal is very high — mild exercise doesn’t sufficiently discharge the sympathetic activation; the intensity needs to match the arousal.