The science behind cortisol

Nicknamed the  “stress hormone”, cortisol is released into the bloodstream by the adrenal glands when the body perceives a threat. On a normal day, it helps regulate mood, blood pressure, and blood sugar levels. Stress, as defined by the WHO, is a state of mental or emotional strain caused by challenging circumstances. While everyone experiences stress, our reactions vary, often significantly impacting our overall well-being.

According to a study conducted by Statista between July 2022 and June 2023, over a quarter of French people (26%) reported experiencing stress, anxiety, or depression in the past year. This figure rises to 34% in Germany, 39% in the UK, and 45% in Sweden. Whether triggered by work, mental load, or a hectic lifestyle, stress is an undeniable part of our modern lives. To keep it from affecting our mental health, we must prioritize self-care. The good news? There are quick, effective techniques to manage stress, even duringof a busy day.

How does the body react to stress?

Let’s go back to biology class. As mentioned earlier, when faced with a stressful situation, the body releases catecholamines (hormones produced by the adrenal medulla, including adrenaline and cortisol). These hormones increase heart rate, blood pressure, and blood sugar, providing a temporary boost in strength and energy. In ancient times, this response was critical for survival, such as escaping a predator.

Today, stressors are different—running late to an appointment, preparing for an exam, or facing a challenging work situation. Chronic stress, however, stems from ongoing issues like difficult work environments, financial troubles, or health concerns. The effects of stress are far from trivial, potentially leading to digestive problems, joint pain, high blood pressure, and even depression. No wonder it’s called the “plague of the 21st century” .

High-tech stress management

Common signs of anxiety include a tight throat, stomach knots, rapid heart rate, and sweaty palms. Luckily, wearable technology now allows us to monitor stress levels. Many smartwatches use Heart Rate Variability (HRV) tracking, which measures the time variation between heartbeats. For instance, a heart rate of 60 beats per minute doesn’t mean your heart beats exactly every second.

Instead, intervals might vary, such as 0.9 seconds followed by 1.1 seconds. HRV measures this variation, with high stress leading to reduced variability. Smartwatches like the Garmin Fenix 8 (starting at 9200 MAD) or the Apple Watch Series 10 (starting at 5290 MAD) not only track stress but also suggest calming techniques like guided breathing exercises. Whether it’s yoga, meditation, or visualization, these methods help bring calm and balance.

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Mastering breathing techniques

Deep breathing from the diaphragm is essential to relaxation. This involves inhaling deeply through the nose, expanding the belly, holding the breath for a few seconds, and exhaling fully through the mouth. A series of 10 repetitions can leave you feeling noticeably calmer. However, this method can be noisy and impractical in social settings or restrictive clothing.

An excellent alternative is cardiac coherence breathing, which involves six breaths per minute (inhale for five seconds, exhale for five seconds) over five minutes. This slow, steady rhythm lowers cortisol levels while boosting DHEA, the “anti-stress hormone.” The benefits begin after just three minutes and can last for 4–6 hours.

For convenience, tools like ZenSpire (550 MAD at Jerraflore) guide your breathing using light, sound, or vibrations. Compact and portable, it’s perfect for on-the-go stress relief.

Get into yoga 

If you’ve been on social media lately, you’ve likely seen ads for “cortisol yoga,” designed to reduce cortisol levels, but  the concept isn’t new; yoga has long been celebrated for its calming effects. By connecting breath to movement, yoga promotes a state of relaxation and even meditation. Studies show yoga can lower cortisol levels, reduce anxiety, increase resilience, and improve mood. Some poses are particularly effective for stress relief.

Child’s Pose and Cat Stretch release back tension and ease stiffness in the neck and shoulders. Sukhasana (Easy Pose) is ideal for meditation, aligning the spine and encouraging deep breathing. To calm the nervous system, try the Legs-Up-the-Wall pose, which involves lying with your legs elevated against a wall. For releasing back tension, incorporate supine twists into your routine. Hold each pose for at least one minute to maximize benefits, practicing either in the morning or before bed.

Try visualization techniques 

While meditation is a proven stress-reducer, it can be challenging in noisy environments. Visualization offers an easier alternative. Simply imagine a serene place—whether it’s a sunlit beach, a lush garden, or even an amusing scenario like being stuck in an elevator with your favorite celebrity.

Visualization can also help boost confidence before important events, such as picturing yourself delivering a flawless presentation. The length of this exercise depends on the situation, and that’s what makes it  so versatile;.you  can practice it anytime—at work, during your commute, or in bed before drifting off to sleep.