New research has revealed that the amount of sleep you get can significantly impact how quickly you age. Both insufficient and excessive sleep have been linked to accelerated biological ageing, according to a study published in the journal Scientific Reports.
The Study's Findings
Researchers analyzed data from over 22,000 adults and found that those who slept less than seven hours or more than nine hours per night showed signs of increased biological age compared to those who slept seven to nine hours. Biological age, which measures how old your cells and tissues appear, can differ from chronological age.
How Sleep Affects Ageing
Sleep plays a crucial role in cellular repair and regeneration. When sleep is disrupted or insufficient, the body experiences increased oxidative stress and inflammation, which can damage DNA and accelerate ageing. Conversely, excessive sleep may indicate underlying health issues that also contribute to ageing.
Key Takeaways
- Optimal sleep duration: Seven to nine hours per night is associated with slower biological ageing.
- Short sleepers: Those sleeping less than seven hours had higher biological age.
- Long sleepers: Those sleeping more than nine hours also showed accelerated ageing.
Practical Advice
To promote healthy ageing, experts recommend maintaining consistent sleep schedules, creating a restful environment, and avoiding stimulants before bedtime. If you consistently sleep too little or too much, consult a healthcare provider to rule out sleep disorders or other health conditions.
This study adds to growing evidence that sleep is a key pillar of health, alongside diet and exercise, in slowing the ageing process.
