How your heart rate variability can offer an insight into your mind

image via New Scientist

April 27, 2026, 9:00 AM

• •HRV is a measure of the tiny variations in time between each heartbeat, with higher variability generally indicating better stress resilience.
• •Studies suggest a link between lower HRV and a higher likelihood of depression.
• •HRV is being investigated as a potential biomarker for various mental health conditions.
• •Lifestyle factors like sleep and exercise can influence HRV and mental well-being.

Heart rate variability (HRV), a measure of the variation in time between heartbeats, is increasingly being explored for its connection to mental health. Research suggests that lower HRV may be linked to a higher likelihood of depression, with studies showing correlations between HRV and various cognitive and mental health conditions. While HRV shows promise as a potential biomarker, it's not a standalone diagnostic tool, and further research is needed to understand its complexities. However, monitoring HRV can serve as a useful indicator of stress and recovery, prompting lifestyle changes like better sleep and exercise to improve mental well-being.

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