Stress is your body’s natural response to challenges, preparing you to face or escape a perceived threat. It triggers the sympathetic nervous system, which increases your heart rate, releases stress hormones like cortisol, and sharpens your focus.
Example: Imagine you’re running late for an important meeting. Your heart races, your palms sweat, and your mind focuses sharply on getting there. This short-term stress can help you perform better by boosting energy and alertness.
However, when stress is constant—like feeling overwhelmed at work every day—it can harm your body and mind. Chronic stress leads to fatigue, difficulty sleeping, and weakened resilience.
Heart Rate Variability (HRV) measures the tiny changes in time between each heartbeat. It reflects how well your body balances the sympathetic nervous system (fight-or-flight mode) and the parasympathetic nervous system (rest-and-recover mode).
Example: Think of HRV as the responsiveness of your car’s brakes. A healthy HRV means your body can quickly slow down (relax) after speeding up (stress). Low HRV is like brakes that are slow to respond, making it harder to recover and regain balance.
Stress has a direct impact on HRV. In moments of acute stress, HRV naturally decreases as your body shifts into fight-or-flight mode. This is normal and even beneficial in the short term.
Example: If you suddenly hear a loud noise, your HRV drops as your body prepares to act quickly. Once the threat passes, HRV rises again as your body returns to a calm state.
However, with chronic stress, HRV stays low for extended periods, signalling that your body is stuck in a heightened state of tension without enough recovery time.
owever, with chronic stress, HRV stays low for extended periods, signalling that your body is stuck in a heightened state of tension without enough recovery time.
HRV is like a “check engine” light for your body, showing when it’s time to rest and recharge. A high HRV means your body is adaptable and resilient, while a low HRV warns that you might be overworked or under too much stress.
Example: After a good night’s sleep, HRV is typically higher, reflecting recovery and balance. On days when you’re sleep-deprived or stressed, your HRV will likely be lower, indicating that your body is under strain.
By monitoring HRV, you can gain a clearer picture of how your body handles stress and adjust your lifestyle to improve your health and well-being.
If you notice your HRV is low, it could be a sign that your body is stressed. Here are a few things you can do:
Tracking HRV regularly can help you notice when stress is affecting you and guide you to make adjustments to improve your health.