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8 Steps to Wellbeing - Smoking and alcohol

It’s never too late to give up smoking. There are trained advisors who can provide advice and a range of stop smoking aids to help you to stop smoking. 

How smoking affects the brain 

Smoking has several harmful effects that increase dementia risk: 

  • Reduces blood flow to the brain: Nicotine and chemicals damage blood vessels, leading to poor oxygen and nutrient delivery. 
  • Raises risk of vascular disease: Stroke, hypertension, and heart disease are linked to cognitive decline. 
  • Directly linked to Alzheimer’s disease: Smokers have a higher chance of developing Alzheimer’s and other dementias.

 Smoking cessation and brain health

  • Immediate benefits: Improved blood flow and oxygen delivery. 
  • Long-term benefits: Slower cognitive decline and reduced risk of Alzheimer’s disease. 
  • Other benefits: Lower risk of heart disease, stroke, and cancer, all of which indirectly protect brain health.

Drink less alcohol

  • Heavy drinking can directly damage neurons and brain structures. 
  • Raises risk of stroke, high blood pressure, and liver disease, which indirectly increase dementia risk. 
  • Can lead to vitamin deficiencies, particularly B vitamins, important for brain health. This, in turn can also lead to Alcohol Related Brain Injury (ARBI). Evidence suggests that as many as a third of people with an alcohol dependency may have ARBI. ARBI is often reversible with treatment and abstinence from alcohol. 

Recommendations for brain health 

  • There are no safe levels for drinking alcohol. Drinking alcohol can harm your brain. 
  • Men and women are advised not to regularly drink more than 14 units of alcohol a week (6 pints of beer or glasses of wine). Spread your drinking over three days or more if you drink as much as 14 units a week. The more you drink above these amounts, the more chance you have of harming your brain 
  • Focus on other lifestyle strategies (exercise, diet, smoking) to reduce risk of dementia.