Think skipping sleep is no big deal? Think again. Regularly getting fewer than 7 to 8 hours of sleep per night can have serious consequences for your physical, mental, and emotional health. Here’s what the science says, and why prioritizing sleep is essential for long-term wellness.
The impact of sleep on mental health
Sleep is essential for the health of your brain. According to the National Institutes of Health (NIH), sleep deprivation can affect your ability to learn, focus, and regulate emotions.
Poor sleep has also been linked to:
- Depression and anxiety
- Increased stress
- Difficulty concentrating
- Slower thinking and decision-making
- A higher risk of mistakes and accidents.
In Canada, 1 in 3 adults report difficulty staying awake during the day, and 1 in 2 struggle with falling or staying asleep. Poor sleep quality is also associated with higher rates of chronic stress and poor mental health.
The impact of sleep on your physical health
Sleep is when your body repairs itself. Without enough rest, you’re more likely to develop:
- Heart disease and high blood pressure
- Type 2 diabetes and insulin resistance
- Obesity and hormonal imbalances
- Weakened immune function
The Cleveland Clinic notes that sleep deprivation disrupts hormones like ghrelin and leptin, which regulate hunger and fullness, leading to increased appetite and weight gain. It also raises cortisol (the stress hormone), which contributes to aging, inflammation, and cardiovascular strain.
The safety risks of sleep deprivation
Sleep-deprived individuals are more prone to accidents. The CDC equates 20 hours without sleep to driving with a blood alcohol level of 0.08%. That’s the legal limit in most U.S. states. Microsleeps (brief, uncontrollable episodes of sleep) can occur without warning, putting drivers, healthcare workers, and machine operators at serious risk.
Long-term health concerns of sleep deprivation
Chronic sleep deprivation has been associated with several long-term health concerns, including:
- Cognitive decline
- Mood disorders
- Hormonal imbalances
- Poor skin health.
Getting enough sleep is an important part of supporting long-term health and well-being.
How to get enough sleep regularly
A few simple habits can help improve sleep quality and duration:
- Maintain a consistent sleep schedule
- Avoid caffeine, alcohol, and screens before bedtime
- Create a quiet, dark, and cool sleep environment
- Practice relaxation techniques such as mindfulness or gentle stretching
- Exercise regularly, but avoid intense activity too close to bedtime.
Sleep is more than just rest. It’s an essential part of recovery, physical health, mental well-being, and day-to-day performance. Making sleep a priority can help you feel your best today while supporting your long-term health.
Sources
• Risks from Not Getting Enough Sleep | NIOSH, CDC
https://www.cdc.gov/niosh/work-hour-training-for-nurses/longhours/mod2/03.html
• Sleep Deprivation and Deficiency: How Sleep Affects Your Health | NHLBI, NIH
https://www.nhlbi.nih.gov/health/sleep-deprivation
• Are Canadian Adults Getting Enough Sleep? | Canada.ca
https://www.canada.ca/en/public-health/services/publications/healthy-living/how-much-sleep-do-canadians-get.html
• 13 Effects of Sleep Deprivation | Cleveland Clinic
https://health.clevelandclinic.org/effects-of-sleep-deprivation
