Sleep Better, Live Better: How Sleep Impacts Longevity and Weight Loss
The quest for longevity — the aspiration to extend life beyond the average — has always fascinated us. Ultimately, large parts of longevity are out of our control; genetics and environmental factors will play a role in our lifespans. However, modern science and medicine continue to give us more insights into how our lifestyle choices interplay with other factors in determining longevity. We can empower ourselves to make informed decisions that pave the way for a more fulfilling and enduring existence. Remember, longevity is about more than just the number of years lived; it's about the quality of those years.
Surprisingly, one of the most potent influences on both longevity and weight management is sleep. We're here to uncover the secret link between sleep, longevity, and weight loss, and we'll show you easy ways to improve your sleep habits for a brighter future.
What is high quality sleep?
Achieving high-quality sleep means cycling through various stages, including deep sleep and REM (rapid eye movement) sleep. Deep sleep, also known as slow-wave sleep, is crucial for physical restoration and memory consolidation. It's during this stage that the body undergoes cellular repair and muscle growth. REM sleep, on the other hand, is the stage most associated with vivid dreams. This phase is essential for cognitive functions and emotional regulation.
If you can recall vibrant dreams upon waking and feel refreshed after a night's sleep, it's a sign you're experiencing quality REM cycles. However, if you find yourself waking up multiple times during the night or feel sluggish despite sleeping for a sufficient duration, you might not be getting enough of these vital sleep stages.
The CDC recommends adults aim for 7 to 9 hours of sleep per night. Consistently achieving this duration can optimize overall health and well-being. Using sleep monitors, like those found in smartwatches or fitness trackers, can be helpful. They offer insights into your sleep patterns by measuring heart rate, breathing, and movement throughout the night, helping you understand the quality and quantity of your rest.
The Link Between Sleep and Longevity
Extensive research has proved a link between adequate, high-quality sleep and increased lifespan. Unpacking the biological processes occurring during sleep helps explain this connection:
Cellular repair and regeneration: Deep sleep promotes vital activities like DNA error correction and cell division. These processes are pivotal in staving off chronic diseases and ensuring overall health.
Cognitive function and memory: Sleep is essential for memory consolidation and optimal cognitive functioning. It sharpens our learning, decision-making, and problem-solving abilities — elements crucial for enriching life quality as we age.
Heart health: Lack of sleep is associated with an increased risk of heart disease, hypertension, and stroke. Quality sleep helps regulate blood pressure, reduce inflammation, and support a healthy cardiovascular system.
Hormonal balance: Sleep governs the balance of critical hormones connected to stress, appetite, and growth. Proper sleep plays a role in weight and stress management, both influential factors for longevity.
A recent study showed that individuals who reported high quality sleep had a life expectancy of 4.7 years greater for men and 2.4 years greater for women.
The Link Between Sleep and Weight Loss
Research has also shown that good sleep is an important factor in maintaining a weight loss program. You may have already noticed that days where you don’t get more sleep, you are more likely to reach for a sugary snack or a big greasy meal. This has both psychological and physiological underpinnings.
Psychologically: Poor sleep can affect mood, concentration levels and energy levels. Maintaining a weight loss program requires high levels of will power and inadequate sleep can make it more difficult to resist temptations or to motivate healthy habits.
Physiologically: Sleep is linked to the regulation of hormones within the body, specifically leptin, the satiety hormone, and ghrelin, the hunger hormone. Poor sleep can lead to imbalances in these hormones which trigger hunger and cravings. Additionally, during sleep, metabolic pathways are repaired and restored. Inadequate sleep can slow down your metabolism.
How to Improve your Sleep Through Sleep Hygiene
The term ‘sleep hygiene’ is used in the field of sleep medicine to draw a parallel between the practices that maintain our physical health and what we should be doing to optimize our sleep. Much like you brush your teeth or take showers, you can also incorporate habits into your daily routine that will help support your body in getting deep sleep:
Keep a consistent sleep schedule
Have a relaxing bedtime routine such as reading or meditating
Minimize screen time before bed
Limit caffeine, alcohol, and heavy meals close to bedtime
Exercise daily but not in the 2 hours before bedtime
Optimize your sleep environment so it’s dark, cool, and comfortable
In a world that prioritizes productivity over rest, it’s important to recognize the part that sleep plays in our longevity and carve out time to practice sleep hygiene. A good night’s sleep is not a luxury; it’s as crucial for our body as physical hygiene and even as powerful as medication.
Ensuring longevity and maintaining healthy weight goals can seem like a challenge, but you don’t have to navigate this journey alone. At Qyral, we're dedicated to helping individuals age well and live well. Learn more and start your wellness journey with us today!