Statistic: One 20-minute session reduces cortisol by ~28% for several hours — evidence that movement has an immediate effect on stress.
🧠 Dopamine & Endorphins
Exercise raises dopamine and endorphins (the "runner's high"), improving mood and motivation.
😴 Sleep
Regular exercise improves sleep quality: more deep sleep and fewer awakenings.
💭 Rumination
Exercise interrupts rumination loops: 15 minutes often breaks the cycle.
❓ FAQ — Mental Health
How long to reduce anxiety? 20 minutes minimum per session for measurable acute effect. For durable effects, 3–4 sessions/week over several weeks are recommended.
Does exercise help with depression? Yes — meta-analyses show benefits for mild-to-moderate depression. For severe depression, seek professional care.
Intense or gentle? Both: intense sessions boost dopamine, gentle sessions relax via parasympathetic activation. A mix (2 intense + 3–4 gentle sessions) works best.
FAQ — Mental Health
How long to feel effects?
15–20 min of activity often reduces stress.
Does exercise help anxiety?
Yes, it reduces cortisol and boosts mood via endorphins/dopamine.