Celsius causes brain fog

Question

Celsius and other caffeinated drinks can lead to brain fog and fatigue.

Comments

I think that this claim definitely has some truth to it, however since the article does not directly call out Celsius, then that leads me to believe that the person to created this claim may have something against the Celsius drink, or maybe the company, considering that the brain fog comes from the caffiene in the drink, then it wouldn't make sense that other drinks containing caffiene would not also cause brain fog.

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I don't agree with this claim at all. Obviously, if you consume too much of something it becomes bad for you. However, Celsius and other energy drinks are made to give you energy and essentially focus on whatever activities you're trying to do.  Celsius is also made with different vitamins and amino acids that help enhance mental clarity and physical performance. Many consumers report increased focus and sustained energy without crashes associated with traditional sugary energy drinks, especially considering that Celsius is made with 0 sugar. If Celsius did lead to brain fog, its products wouldn't be endorsed by so many athletes at both college and professional levels. These are people who's jobs require focus and lots of energy. Rather than blaming energy drinks, I think factors like an individuals diet, hydration levels, and caffeine tolerance .

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This claim “Celsius and other caffeinated drinks can lead to brain fog and fatigue.” is found to be true followed by many harmful effects. Firstly when reading the provided article, the writer never actually states the issues being caused are by the caffeine within the Celsius brand themselves. In this case, the author could have gone to extreme assumptions for this claim to persuade the audeince, despite some truth in the statement. It seems that ther eis no direct correlation with Celsius itself rather than caffeine as a whole casuing brain fog within customers. An external article addresses brain fog in general stearing away from even the effects from caffeine. Brain fog is often linked to chronic fatigue syndrome (CFS), which affects about 1 million Americans. (Roche, 2025). Other validated sources address some negative aspects of caffeine intake; crashes, dehydration, and blood sugar irregualries.  Ultimatley, it is determined that although this claim is true, this specific article coverfing the effects of celsius are untrue and are made assumptions.
Sources: https://www.livestrong.com/article/440331-caffeine-brain-fog/#google_vignette

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This claim that Celcius and other caffeine drinks cause brain fog is shown to be true in this article by providing multiple other sources. The article talks about various health risks most concluding in overuse of caffeinated drinks can cause brain fog. The article also provides multiple other reliable sources to back health concerns relating caffeine. Although the article is convincing, the claim could be biased from a personal experience.

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I agree with the claim to some extent, but I believe the credibility of the article would be significantly enhanced if there were more resources and detailed information specifically about the Celsius drink itself. Providing direct references, studies, or expert opinions related to the product would help strengthen the argument and make it more trustworthy. Additionally, if the claim were framed differently maybe focusing on other aspects or backing up the statement with more concrete evidence the article would appear more credible overall.

Answer 1

The article explores the idea of caffeine-induced "cognitive lapses," which are associated with a condition that cannot be officially diagnosed, known as "brain fog." It claims that people with symptoms of brain fog experience chronic fatigue, which may be a result of caffeine overconsumption. As caffeine is a stimulant, it poses the risk of influencing sleep patterns. Every can of Celsius does contain a large dose of caffeine, so it makes sense that these symptoms may become present for those who frequently consume the beverage. This article only addresses caffeine in general in association to brain fog, not Celsius in specific. So there is no direct evidence present that the brand itself is causing these cognitive lapses. It can be inferred that Celsius causes symptoms of brain fog through the evidence provided, but because the claim is so vague and brain fog cannot be officially diagnosed, it can't be determined that this is 100% accurate.

Answer 2

This article claims that caffeinated drinks can lead to brain fog and fatigue due to its wakening effects that cause those caffinated to be sleep deprieved. This article is from Livestrong which seems to be a pretty trusted source. It provives reaserch and quotes from doctors and sleep experts. They claim that the caffine itself is not what is making you foggy, it's the fact that you're tired from the lack of sleep as an effect of the caffine. This seems to be true. I cross checked with the National Institute of Health, a trusted source, which follows along the same ideas that are stated in the article. Overall, I would say that the article itself seems pretty legit and caffeinated drinks do have effects that lead to sleep depervation causing brain fog and fatigue. What I think is misleading in this claim is the heading "Celsius causes brain fog". The article doesn't dive into celsius in paticular so it seems more like click bait.

https://pmc.ncbi.nlm.nih.gov/articles/PMC8202818/

Answer 3

The article claims that drinks like Celsius and other caffeinated beverages can lead to brain fog and fatigue, particularly after restless nights and sleep deprivation. While caffeine intake may contribute to these symptoms, it is not the sole or primary cause of brain fog and fatigue. As Dr. Dennis Lipton explains, "people with brain fog may not realize how bad they feel until they treat it and suddenly feel—and think—better." This suggests that while caffeine can be a factor, it’s just one element in a broader picture of sleep deprivation and overall health.

Caffeine, in itself, is not the leading cause of these symptoms but can certainly play a role in exacerbating them, especially when consumed late in the day. Lipton notes that treatment for these issues can be relatively simple, including improving sleep hygiene—such as going to bed earlier, consuming less caffeine, and reducing alcohol intake. Brain fog and fatigue are often the result of multiple factors, including chronic fatigue syndrome (CFS), insomnia, or poor sleep habits. Caffeine is often used by those suffering from these conditions to combat daytime drowsiness, but this only masks the underlying problem rather than addressing it.

The article also cites research from Christopher Drake and colleagues, who point out that "caffeine taken 6 hours before bedtime has important disruptive effects on sleep." This underscores the importance of sleep hygiene and the need to avoid caffeine in the hours leading up to sleep. Many individuals who suffer from chronic fatigue may rely on caffeine too frequently or too late in the day, which disrupts their sleep cycles and perpetuates a vicious cycle of fatigue and poor sleep quality.

Ultimately, the headline of this article is designed to grab attention but is somewhat misleading. While caffeine consumption can influence sleep patterns and exacerbate symptoms like brain fog and fatigue, it is not the direct cause. Rather, these symptoms are often a consequence of broader issues like sleep deprivation, poor sleep quality, and lifestyle factors. The real issue lies in the lack of adequate rest, which can be improved with better sleep habits and lifestyle changes.

https://www.vailhealth.org/news/could-it-be-brain-fog

Answer 4

The claim that "Celsius causes brain fog" might exaggerated because it lacks specificity around caffeine’s full effects plus general brain fog causes from person to person. Brain fog, a state of mental fatigue or reduced clarity, can come from many different factors, like diet, dehydration, or other health conditions other than being solely attributed to one drink. According to Norwest Chiropractic, "Ultimately, caffeine does not address the root cause of your brain fog."

While caffeine, Celsius’s main active ingredient, can change alertness, the effects depend on the individual. In moderation, caffeine is known boosts mental clarity, but excessive intake can lead to dehydration or overstimulation, possibly resulting in brain fog for some people. Also, withdrawal from caffeine in more frequent users could temporarily cause brain fog like symptoms, like as headache or fatigue, but this is not specific to Celsius and can happen with any caffeinated beverage.

Also those with conditions such as ADHD can affect ones response to caffeine because of it's influence on dopamine production and can even lead to tiredness according to Effective Effort.

Sources: 

https://norwestchiro.co.nz/7-reasons-why-you-are-having-a-brain-fog

https://www.cdc.gov/healthyschools/nutrition/energy.htm#:~:text=These%20legal%20stimulants%20can%20increase,%2C%20heart%20rate%2C%20and%20breathing.&text=These%20drinks%20are%20often%20used,effect%20on%20the%20nervous%20system.

https://www.celsius.com/essential-facts/

https://effectiveeffortconsulting.com/why-does-coffee-make-me-sleepy-adhd-caffeine/#:~:text=Individuals%20with%20ADHD%20often%20struggle,even%20more%20challenging%20to%20manage.

Answer 5

Celsius, which contains caffeine, when you drink more than the recommended amount can lead to brain fog, but this can happen with any product/drink that contains caffeine. The article specifically states that as well. There are multiple reasons why the article lists how caffeine affects you in the long term when you aren't moderating the amount you are taking.

Comments

I completely agree that tolerance is a key factor. You made a good point that everyone processes caffeine differently, which is why its effects on brain fog can vary so much. This difference in how we metabolize caffeine highlights why its impact on focus and fatigue isn’t the same for everyone.

Answer 6

The article title claims that Celsius can lead to brain fog but I feel this can be misleading since it is specifically geared towards the brand. It also claims that caffeine can disrupt the sleep schedule, which I believe to be true since lots of other studies have stated the same claim.

Answer 7

Reliable sources provide significant evidence for the article's claims. Given that changes in blood sugar levels affect cognitive function, blood sugar imbalances can in fact cause brain fog . It is advised to consult your doctor if you are obtaining enough sleep but are still having brain fog because this could indicate additional health problems. Established methods for enhancing cognitive clarity include changing one's lifestyle to include regular exercise, stress management, and hydration. Frequent exercise, particularly cardiovascular activity, has been shown to improve mood and mental function. It also has additional advantages for older persons and dementia risk individuals.

When taken in moderation, caffeine can enhance cognitive performance; but, if taken in excess (over 600 mg), it can cause adverse effects such as anxiety, sleeplessness, and jitters. Because of their increased sensitivity, children, teenagers, and pregnant women should take less caffeine. Blood sugar fluctuations brought on by adding sugars or syrups to coffee can worsen symptoms of exhaustion and cognitive difficulties.Even though caffeine can improve cognition when used in moderation, it's vital to take into consideration other elements like exercise, sleep, and hydration because they are also essential for reducing brain fog and increasing mental focus.

https://www.health.harvard.edu/diseases-and-conditions/blood-sugar-on-the-brain

https://www.vailhealth.org/news/could-it-be-brain-fog

https://health.clevelandclinic.org/how-to-quit-caffeine

https://pmc.ncbi.nlm.nih.gov/articles/PMC3805807/

Answer 8

While some websites I found describe energy drinks in general to have some negative effects on your health such as anxiety and a rapid heart rate, I was unable to find trustworthy sources pointing Celsius specifically to brain fog, making the comment misleading. Health websites like https://health.clevelandclinic.org/are-energy-drinks-bad-for-you described energy drinks as having negative health impacts if you down one or multiple energy drinks or mix them with other substances, but do not mention affects on your focus on "brain fog." Additionally, this website from CNBC and written by a Harvard brain expert, said some things like a high intake in sugar can lead to a lack of focus or brain's attention, but no where in the article does it mention Celsius specifically. This makes the claim too misleading as there is not clear evidence that Celsius has these effects on our brains.

Answer 9

The article explores the effects of caffeine on brain fog and fatigue, linking to several sources for deeper insights. Dr. Dennis Lipton points out that many people with brain fog don’t realize how poorly they feel until they treat underlying issues like sleep deprivation. While caffeine isn’t the primary cause of brain fog, it can contribute to poor sleep, which worsens symptoms. Lipton suggests simple fixes like going to bed earlier, reducing caffeine and alcohol intake, or addressing sleep apnea. https://www.vailhealth.org/news/could-it-be-brain-fog. Caffeine is often used by those with chronic fatigue or insomnia, but research by Christopher Drake et al. shows that consuming it even six hours before bed can significantly disrupt sleep. Many people rely on caffeine late in the day, perpetuating a cycle of poor sleep and fatigue. While the article’s headline grabs attention, it’s misleading. Caffeine doesn’t directly cause brain fog, it disrupts sleep, which in turn can lead to symptoms like fatigue and dehydration .https://pmc.ncbi.nlm.nih.gov/articles/PMC3805807/.

Answer 10

The claim that "Celsius and other caffeinated drinks can lead to brain fog and fatigue" is partially accurate but oversimplifies the effects of caffeine. According to the article from LIVESTRONG, caffeine generally acts as a stimulant, temporarily boosting alertness and energy. However, excessive consumption can lead to overstimulation, causing anxiety, jitteriness, or a subsequent crash, which may feel like fatigue. Brain fog might also occur if caffeine disrupts sleep or causes dehydration, as both can impair cognitive clarity. Drinks like Celsius, which are high in caffeine, may exacerbate these issues if consumed in large amounts or close to bedtime. It’s important to note that these effects vary depending on individual tolerance and consumption patterns. Moderate caffeine intake is unlikely to cause significant fatigue or brain fog in most people.