The Most Overlooked Pillar of Healthy Aging and Longevity
Sleep isn’t something you do. It’s something you honour.
For decades, we viewed sleep as little more than a period of rest between busy days.
Today, science tells a different story. Sleep is one of the most powerful longevity tools we possess. Few things influence health, healing and longevity more – and it’s completely free.
Every night while you lie still, remarkable things are happening inside your body. The brain clears metabolic waste, memories are consolidated, growth hormone is released, tissues are repaired, the immune system recharges, blood sugar is regulated and the nervous system shifts into recovery mode. In many ways, the quality of your days depends on the quality of your nights.
If I could wave a magic wand and improve just one health habit for most people older than 65, it wouldn’t be nutrition. It wouldn’t be exercise. It wouldn’t be supplements. It would be sleep. I consider sleep sacred – a gift for the body, mind and spirit.
Sleep isn’t passive, optional or a luxury. It is active, intelligent medicine and a biological necessity. Picture this: as you drift off to sleep, your body summons the night shift crew whose job it is to fix, repair, regulate, restore and heal YOU.
Too often, older adults dismiss poor sleep as inevitable instead of recognizing it as a modifiable health issue.
“I only got five hours.”
“I was awake from 3 to 5 a.m.”
“I’ve never been a good sleeper.”
One of the biggest myths about sleep is that it’s all about the number of hours. Hours matter, but timing matters too. Our bodies thrive on rhythm. Going to bed and waking up at roughly the same time each day helps to train our internal clock and often improves sleep quality more than simply spending extra time in bed.
While there is no perfect bedtime for everyone, our biology tends to favour an earlier night. For many people, being asleep by 10 p.m. provides a valuable window for deep sleep, cellular repair, hormone regulation and the brain’s nightly housekeeping.
Another surprise? You cannot sleep while your brain believes that there is a threat – real or imagined.
Worry, fear, anxiety, rumination and negative thoughts activate the amygdala, the brain’s alarm system. When the amygdala senses danger, it triggers the sympathetic nervous system – our fight-or-flight response. Heart rate increases, muscles tense and alertness rises. Helpful in an emergency, yes. Helpful for sleep? Not at all.
Sleep deprivation also lowers pain thresholds and increases inflammation, creating a vicious cycle for those living with chronic pain.
Fortunately, there is good news. Your body was never designed to stay in fight-or-flight mode. It has an equally powerful healing system called the parasympathetic nervous system – the rest-and-digest response. This is where sleep lives.
At the centre of this calming system is a remarkable nerve called the vagus nerve. Think of it as the body’s peace-and-calm pathway. It carries messages between the brain and major organs, helping to slow the heart, relax the body, aid digestion and prepare us for sleep.
When the vagus nerve is active, the body receives a powerful message:
“You are safe. You can let your guard down now. You can sleep now.”
And you can actually communicate with your vagus nerve.
One of the simplest and most effective ways is through breathing. Just beneath your lungs sits the diaphragm. When you breathe slowly and deeply, the diaphragm moves rhythmically, gently stimulating the vagus nerve and sending signals of safety and calm throughout the body.
If there is one word which I hope that you remember from this article, it is this:
EXHALE.
Most people think that relaxation begins when they take a deep breath in. Surprisingly, the magic happens on the breath out. A slow, lengthy exhale until the lungs feel empty is like a text message to the vagus nerve saying, “All is well. You can relax now.”
Remember this: every long exhale is a message of safety. And when you feel safe and calm, you sleep.
Safe = Sleep.
Why wait until bedtime to calm your nervous system? You have the entire day to practise breathing techniques that help you become less reactive, and more prepared for restorative sleep.
One of my favourite techniques is the Physiological Sigh. Take a comfortable inhale through your nose and then top it up with a second significant inhale. Follow with a slow, complete exhale through your mouth until your lungs feel empty. Repeat two or three times.
Another effective technique is VOO Breathing. Take a slow breath in and, as you exhale, make a deep, low “voo” sound until your lungs are empty. The vibration stimulates branches of the vagus nerve in the throat and often creates an immediate sense of calm.
Remember, the goal is not perfect breathing. The goal is to send repeated messages of safety to your body throughout the day so that sleep comes more naturally at night.
If you wake in the middle of the night, resist the urge to check the time. The moment you see that it’s 3:17 a.m., frustration appears and your mind starts calculating how much sleep remains. Hello, amygdala.
If you need to use the bathroom, keep the lights dim and return to bed. As you settle back in, remember to exhale.
If your thoughts continue to race, try the Cognitive Shuffle. Think of random, emotionally neutral words for each letter of the alphabet: apple, apron, anchor; banana, boat, bicycle. This simple exercise distracts the mind from worries and helps quiet mental chatter.
A short nap of 20-30 minutes can be restorative but keep naps brief and avoid late-afternoon sleeping, which may interfere with nighttime rest.
If good sleep were a recipe, these would be the final ingredients: 30 minutes before bed, put away electronics and dim the lights. Read a book if you enjoy reading. Avoid upsetting television programs or the evening news, which can activate the fight-or-flight response.
When appropriate, I often recommend magnesium glycinate to support relaxation and a calmer nervous system. Always consult your health-care provider before starting any new supplement.
And, before you say goodnight to the day, say hello to the bathroom. Emptying your bladder before bed can help reduce nighttime awakenings.
The path to healthy aging doesn’t begin when you wake up in the morning. It begins the night before.
Sweet dreams!
The Sleep Reset Checklist
- Keep a consistent bedtime and wake time
- Aim for lights out by 10 p.m.
- Get morning sunlight within the first hour of waking
- Move your body daily
- Limit caffeine after noon or 1 p.m.
- Stop or reduce alcohol
- Practise slow breathing with an extended exhale
- If you wake during the night, don’t check the time
- Use the Cognitive Shuffle if your mind is racing
- Make your bedroom cool, dark and quiet
- Before sleep, do a cognitive offload by writing tomorrow’s to-do list, allowing the mind to disengage