Smoking

Smoking is one of the most consistent and well-researched risk factors for dementia. What is bad for your lungs and heart is almost always bad for your brain as well. Tobacco smoke contains substances that damage blood vessels, increase inflammation, and reduce the supply of oxygen to the brain.

Large studies show that people who smoke have a clearly higher chance of cognitive decline and dementia than non-smokers. Therefore, smoking is a fixed risk factor within the LIBRA score.

What forms of smoking are we talking about?

Smoking includes all forms where tobacco smoke is inhaled:

• cigarettes and rolling tobacco
• cigars and pipe
• even occasional smoking, if it happens for many years

Not enough is known about e-cigarettes and vaping in the long term. Therefore, they are not considered a safe choice for brain health.

Why is smoking bad for your brain?

Damage to blood vessels Smoking damages the inside of blood vessels and accelerates atherosclerosis. This reduces the blood flow to the brain, affecting both large vessels and small capillaries.

Less oxygen for brain cells Carbon monoxide from smoke displaces oxygen in the blood. The brain is extremely sensitive to oxygen deficiency. Even small shortages, if repeated over time, can cause damage.

Increased inflammation and oxidative stress Smoking increases inflammatory processes and oxidative stress in the body. These processes also play a role in brain aging and dementia.

Accumulation with other risk factors Smokers are more likely to have high blood pressure, high cholesterol, and cardiovascular diseases. These factors reinforce each other and together increase the risk of cognitive decline.

Common Misunderstandings

“I only smoke a few cigarettes a day” Even light smoking increases the risk. It’s not just about the quantity per day, but the duration over the years.

“Quitting makes no sense at my age” Research shows that the risk of dementia decreases after quitting, even at an older age. The sooner you quit, the greater the effect, but every smoke-free period counts.

“Smoking helps me relax” Nicotine can temporarily reduce tension, but in the long run, it actually increases stress and restlessness. Many people only realize after quitting that their baseline level of tension decreases.

“E-cigarettes are a healthy solution” The long-term effects on the brain and blood vessels are still insufficiently known. They are therefore not considered a safe alternative.

What helps with quitting smoking?

Quitting is difficult, but it is also one of the most impactful choices for your health.

Choose a clear quit date A specific moment works better than postponing it. Prepare yourself consciously for this.

Combine tools The chance of success is greater if you use multiple forms of support, such as nicotine replacements, guidance from your doctor, or a quit-smoking coach.

Prepare for tricky moments Think ahead about situations where temptation is high, such as with coffee, stress, or after eating. Come up with alternatives you can use.

See relapse as a learning moment Many people need multiple attempts. A relapse doesn’t mean you can’t quit, but that you’ve learned something about what’s challenging for you.

When should you seek additional help?

If quitting independently is not successful, or if smoking is strongly linked to stress, gloominess, or sleep, professional guidance is beneficial. The general practitioner can assist with counseling and possibly medication that supports quitting.

In short

Smoking damages the blood vessels and oxygen supply to your brain, thereby increasing the risk of cognitive decline. Quitting smoking is beneficial at any age. It is one of the most powerful steps you can take to protect your brain and age healthily.