Introduction

Nicotine is what we call a stimulant drug, having a direct and powerful impact on the chemistry of our brains. ¹ Due to its potency, many people experience difficulties when attempting to quit nicotine use, usually in the form of smoking, vaping, or other nicotine products. While it is common knowledge that nicotine use can have negative implications for our health, few of us are aware of how deeply it can impact our cognitive abilities. Some of the common challenges associated with nicotine withdrawal are brain fog, difficulty concentrating, and memory issues. Both understanding and addressing these issues are integral to making it through the first stages of withdrawal and quitting the detrimental habit for good.

What is nicotine withdrawal?

Withdrawals occur when an individual who often uses nicotine suddenly stops. Because of this, the body and brain have adapted to a lifestyle adopting the use of nicotine, and therefore respond in unusual ways to combat this drastic change. There are many symptoms of nicotine withdrawal, but some of the most common include:

• Cognitive symptoms such as brain fog, concentration issues, and memory issues
• Cravings
• Anxiety
• Sleep disturbances

While most physical symptoms are overwhelming for a few days, it is the cognitive symptoms that generate the largest barrier to quitting nicotine, as they can linger for months.

How can nicotine affect our brains?

When somebody uses nicotine in any form, it rapidly enters our bloodstreams and reaches the brain, binding to specific receptors that can release particular neurotransmitters. These include:

• Acetylcholine is responsible for attention, memory, and learning
• Dopamine, a key player in our reward pathway
• Norepinephrine helps with alertness and arousal

The issue is easy to see here. When somebody smokes often, our brains consequently get used to the release of these neurotransmitters, potentially reducing their natural production through means other than nicotine. Therefore, quitting nicotine suddenly can cause a significant drop in the production of these chemicals, leading to the cognitive symptoms described previously. ³

What are the common cognitive symptoms of nicotine withdrawal?

Brain fog

This is a term used to represent a feeling of mental confusion or sluggishness. Individuals experiencing brain fog best describe it, often along the lines of:

• Issues thinking clearly
• A cloudy sensation
• Feeling disconnected from reality

This can lead to issues performing even the simplest of tasks, due to the individual becoming overwhelmed with information they cannot process quickly enough.

Memory issues

Short-term memory can also experience adverse effects during nicotine withdrawal. An individual may experience the following:

• Difficulty recalling certain words
• Forgetfulness, especially regarding recent events

Difficulty concentrating

The inability to concentrate and focus is one of the most challenging aspects of nicotine withdrawal, leading to the following:

• Shortened attention span
• Easily distracted
• Difficulty staying engaged in tasks

Why do these issues occur?

There are multiple biological and psychological changes in the brain that can be attributed to nicotine withdrawal:

Dopamine drop

When quitting nicotine after heavy use, dopamine levels will fall drastically. Since dopamine has key roles in focus and motivation, a drop can lead to low motivation and clouded cognitive abilities. ⁴

Stress response

The stress caused by withdrawal often causes the brain to increase cortisol levels, the hormone responsible for the feeling of stress. This can lead to the inability to concentrate under pressure.⁵

Disrupted sleep

Disturbed sleep is common, especially in the very early stages of quitting nicotine. Poor sleep combined with nicotine withdrawal can have significant effects on the brain, such as forgetfulness and reduced alertness. ⁶

Neuroplasticity

Having been dependent on nicotine, the brain needs to use its plasticity to rewire itself, temporarily reducing cognitive efficiency. However, brain function will return to normal over time.

How do I cope with nicotine withdrawal?

Exercise regularly

Regular physical exercise can increase oxygenated blood flow to the brain, naturally boosting dopamine during a time of low dopamine.

Healthy diet and hydration

Balanced meals can help your body gain all essential vitamins and nutrients, increasing the feeling of health and wellbeing, and reducing symptoms of withdrawal.

Quality sleep

Around 8 hours of sleep each night will help to reset the brain’s cognitive capabilities over time.

Brain engagement

Consider using books, games, or puzzles to keep the brain active, slowly building up the attention span that diminished during nicotine use.

Conclusion

While nicotine withdrawal can seem tough and at times impossible, it is important to persevere and understand that the cognitive issues seen in withdrawal are temporary and will improve with time. Often, the symptoms of withdrawal are signs that the brain is already healing from previous nicotine use.

Often, having a greater understanding of the biological processes involved in withdrawal can help individuals to better understand why they feel the way they do. In turn, this can generate extra motivation during the quitting process. Remaining patient, open-minded, and determined are all key when experiencing nicotine withdrawal, as the rewards greatly outweigh the drawbacks.

FAQs

How long can nicotine withdrawal last?

Normally, between 1 and 3 months, significant cognitive recovery is usually observed; however, this will depend on the level of nicotine use previously, and will naturally vary person to person. If withdrawal lasts longer than 3 months, remember to persevere and get help if you think you need it.

When should I seek help?

If the symptoms you experience have a significant impact on your daily life, it may be beneficial to seek guidance or help. Severe symptoms can also often lead to anxiety and depression; therefore, speaking to your healthcare provider may be reassuring, and they may provide you with some form of treatment to ease the withdrawal process. It is important to remember that seeking help will not slow the withdrawal process.