When it comes to improving our mental and physical health, we often assume it takes big lifestyle changes—exercise routines, major diet overhauls, or complex self-care rituals. But what if there were simpler, science-backed ways to quickly boost your wellbeing? By understanding how our bodies and brains work together, we can leverage small, physiological techniques to create big changes in how we feel.

In this post, we’ll explore some easy-to-implement strategies that work with your body’s natural processes to improve your mood, reduce stress, increase energy levels, and enhance overall wellbeing.

 

1. Reset the Nervous System: The Power of Controlled Breathing

Breathing is something we do automatically, but when done consciously, it can be a powerful tool for reducing stress and boosting mental clarity. When we’re anxious or stressed, our breathing often becomes shallow and fast, signalling to our brain that we’re in danger. This keeps the body in a heightened state of arousal—activating the fight-or-flight response.

The trick? Slow, deep breathing can activate the body’s parasympathetic nervous system (our “rest-and-digest” mode), which calms the body, improves executive brain function, and reduces physical tension.

Try this: The Physiological Sigh Technique

  • Inhale slowly and deeply through your nose, allowing your lungs to fill and your diaphragm to expand
  • Inhale again through the nose – this breath will be shorter and you’ll notice a stretching sensation of the lungs.
  • Exhale completely through your mouth.
  • Repeat 2-3 times.

This technique activates the vagus nerve, which in turn slows heart rate, lowers blood pressure, and signals to your brain that it’s safe to relax. It also improves lung function and oxygenates the bloodstream. You can use this before a stressful meeting, to wind down before bed, or anytime you feel overwhelmed or triggered.

 

2. Improve Mood with Cold Exposure

Cold exposure might not sound like the most pleasant experience, but research suggests it can have profound benefits for mental wellbeing. Brief exposure to cold—whether through cold showers, cold water plunges, or even splashing your face with cold water (and activating the mammalian dive reflex)—can activate your body’s vagus nerve, which plays a key role in regulating stress and emotional wellbeing.

Studies have shown that regular cold exposure can increase the production of norepinephrine, a hormone linked to improved mood, alertness, and even pain reduction. It also triggers the release of endorphins, the body’s natural “feel-good” chemicals.

Try this: A 30-Second Cold Shower

At the end of your regular shower, gradually turn the water to cold for the last 30 seconds. Focus on your breathing as the cold water hits your skin. This may feel uncomfortable at first, but over time, it can help increase your energy levels, reduce inflammation, and improve mood. On a personal note: I am a rather adverse to cold sensations have been building up my tolerance to cold showers over several months now. Despite my doubts and initial scepticism, I’ve found that the unpleasantness of the cold has been gradually replaced with a sense of invigoration and, dare I say it, a sense of wellbeing. I encourage you to give it a go!

 

3. Optimise Your Posture for Instant Confidence

Your posture doesn’t just affect your physical health—it also influences your mood and self-esteem. When we’re stressed or feeling down, we often hunch our shoulders, round our backs, or look down at the ground. This “defeated” posture can signal to the brain that we’re in a negative emotional state, reinforcing feelings of anxiety or low confidence.

Research in embodied cognition shows that our body language affects our mental state. By adjusting our posture into one of confidence we are sending a powerful signal to your brain, essentially cueing it feel more confident and empowered.

Try this: The Power Pose

  • Stand tall with your feet shoulder-width apart.
  • Place your hands on your hips or stretch your arms wide above your head.
  • Hold this pose for 1-2 minutes while breathing deeply.

This “power pose” can lower cortisol (the stress hormone) and boost testosterone, a hormone linked to confidence. Use this before a big presentation or anytime you need a quick boost in self-assurance. If you need inspiration, this is also known as the ‘Wonder Woman’ pose!

 

4. Regulate Your Circadian Rhythm for Better Sleep and Energy

Your body’s internal clock, known as the circadian rhythm, governs many physiological processes, including sleep, mood, and energy levels. When this rhythm is disrupted (through irregular sleep patterns, too much screen time, or inconsistent exposure to natural light), it can lead to poor sleep, low energy, and even increased stress.

One simple way to improve your circadian rhythm is to get natural sunlight exposure early in the day. Sunlight helps regulate the production of melatonin (the hormone that makes you feel sleepy at night) and serotonin (which boosts mood during the day).

Try this: Morning Sunlight Exposure

  • Spend 10-15 minutes outside in natural sunlight within the first hour of waking. If possible, take a short walk or find some direct sunlight
  • If venturing outside isn’t an option, sit by a window where sunlight is available.
  • If you happen to have a particularly early start or struggle to find daylight during the winter months, try a sunrise alarm clock – a device that emits a gradually increasing light that mimics a natural sunrise. This is designed to work with our circadian rhythm and suppress melatonin levels, which can combat early-morning grogginess.

This exposure to natural light will help reset your internal clock, leading to better sleep at night and improved mood and energy levels during the day.

 

5. Use Temperature to Wind Down: The Hot and Cold Sleep Method

If you struggle to fall asleep at night, there’s a clever temperature technique that can help. Our body temperature naturally drops when we’re preparing for sleep, signalling to the brain that it’s time to rest. You can encourage this process by first raising your body temperature with a warm bath or shower, and then letting it cool down afterward.

Try this: The Hot Bath Technique

  • Take a warm bath or shower about 90 minutes before bed.
  • As your body cools down afterward, your core temperature will drop, mimicking the natural cooling process that occurs as you fall asleep.

This simple routine helps your body transition into sleep mode more easily, improving the quality of your rest and leaving you feeling more refreshed in the morning.

 

The Science of Small Changes

Wellbeing doesn’t always require major life changes. Sometimes, the smallest physiological adjustments can have the biggest impact on how you feel. By working with your body’s natural systems—through breath control, vagal stimulation, light exposure, and posture —you can create quick, effective shifts in your mood, energy, and overall health.

At Elixir Psychology, we believe that mental and physical health are deeply connected. Whether you’re dealing with stress, low mood, or just looking to enhance your daily wellbeing, these physiological strategies are simple yet powerful tools to add to your self-care routine.