The Claim
A single 15-minute session of motivational factors—including diaphragmatic breathing, stretching, and group-based activities—reduces blood cortisol levels by approximately 38% (from 8.63 to 5.36 µg/dL) and significantly lowers symptoms of depression, anxiety, and stress in healthy young adults aged 18–25.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
A 15-minute session of diaphragmatic breathing, stretching, and group-based activities reduces blood cortisol levels by 38% and decreases symptoms of depression, anxiety, and stress in healthy young adults aged 18–25.
See the scientific wording
A single 15-minute session of motivational factors—including diaphragmatic breathing, stretching, and group-based activities—reduces blood cortisol levels by approximately 38% (from 8.63 to 5.36 µg/dL) and significantly lowers symptoms of depression, anxiety, and stress in healthy young adults aged 18–25, indicating that non-exercise behavioral interventions can acutely modulate physiological stress markers.
Slow, deep breathing activates nerves that calm the brain's stress center, which stops the signal that tells the adrenal glands to make cortisol. As cortisol drops, the brain's emotional centers quiet down, reducing feelings of anxiety, depression, and stress.
What the research says
1 studyA 15-minute session of breathing, stretching, and group activities — without any exercise — was shown to lower stress hormones and improve mood in young adults, just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.