SDNN

Biomarker3 papers2 findings

Humans3

Interventions

2

Headphone noise

downin humans1Low certainty

1 study

Headphone noise decreases SDNN in humans (-7.1% to -7.4%).
Humansfollowing a 10-decibel increase in exposure10-decibel increase20 min to 160 min
Association between environmental and headphone noise and heart rate variability: observations from Apple Hearing Study cohort · Journal of exposure science & environmental epidemiology · 4 Sep 2026

Headphone noise →

Environmental noise

downin humans1Low certainty

1 study

Environmental noise decreases SDNN in humans (-6.8% to -16.0%).
Humansfollowing a 10-decibel increase in exposure10-decibel increase20 min to 160 min
Association between environmental and headphone noise and heart rate variability: observations from Apple Hearing Study cohort · Journal of exposure science & environmental epidemiology · 4 Sep 2026

Environmental noise →

Latest

3

Medical SciencesHumans24 Sep

A Wearable-Derived Autonomic Component Is Associated with Cardiovascular Health in Community-Dwelling Adults: A Cross-Sectional Analysis from the Longevity Check-Up 8+ Study

Cardiovascular disease

Psychiatry Research NeuroimagingHumans9 Sep

Heart rate fragmentation in psychiatry: across age stages and association with conventional heart rate variability

Heart rate variability

Journal of Exposure Science & Environmental EpidemiologyHumans5 Sep

Association between environmental and headphone noise and heart rate variability: observations from Apple Hearing Study cohort