The Silent Connection Between Sleep and Stroke

Most people recognise the warning signs of stroke, but fewer people understand how sleep can contribute to stroke risk.

Obstructive Sleep Apnoea (OSA) is a condition where breathing repeatedly stops or becomes restricted during sleep. These repeated interruptions reduce oxygen levels and place stress on the body throughout the night.

Research has shown that untreated sleep apnoea is associated with an increased risk of stroke and other cardiovascular diseases.

Why Does Sleep Apnoea Increase Stroke Risk?

Each time breathing stops:

• Oxygen levels fall
• Blood pressure rises
• Heart rate fluctuates
• Stress hormones increase
• Blood vessels experience repeated stress

Over many years these effects can contribute to damage within the cardiovascular system.

Who Should Consider a Sleep Assessment?

You may benefit from sleep testing if you:

• Snore loudly
• Wake gasping for air
• Experience excessive daytime sleepiness
• Have high blood pressure
• Have had a previous stroke or TIA
• Have atrial fibrillation

Early Detection Can Save Lives

Sleep apnoea is one of the few potentially treatable risk factors that may help reduce future cardiovascular complications.

Good sleep is not just about feeling rested. It is an important part of protecting your heart and brain.