Cortisol Could Be the Next Big Wearable Tech Metric

Our wearables have slowly turned the body into something we can measure throughout the day. A smartwatch can track our heart rate, while a smart ring can tell us how long we slept and how active we were. Yet, there is still a gap.

While consumer wearables may help us understand what our body is doing, they may fail to demonstrate what is going on inside our body. Stress is an especially interesting example here. An increasing heart rate or changing HRV may prove the reaction, but not the hormones behind it. Here comes Cortisol.

Often called the “stress hormone,” cortisol has been studied for decades. Now, researchers are exploring ways to measure it through wearable sensors, including systems that can track cortisol in sweat over time. So, with the wellness girlies already obsessed with it all over Instagram and TikTok, could cortisol become the next piece of our biology...

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