Imagine a magic pill capable of supercharging your brain, would you take it? What if this pill promised a bionic memory, laser focus, mental clarity and motivation at your fingertips?
Sounds straight out of a sci-fi movie, doesn't it? But, hold onto your brain cells, because such "cognitive superchargers" are indeed making waves in the supplement industry, luring consumers with a tantalizing promise of "smart pills" and "brain-boosting" formulas. But is it all just clever marketing?
Dr. Joshua Cahan, a cognitive neurologist at Northwestern Medicine, poetically remarked, "This is something people have been searching for since the dawn of civilization". Yet, "all of the experts we spoke with said they were not aware of convincing evidence that a supplement could improve the mind in such a way", according to the New York Times.
Termed as nootropics, these substances, often available over the counter, promise to influence mental skills positively. You'll find them under different guises, such as dietary supplements or prescription drugs like Adderall or even fish oil. So, what's actually in them?
Many manufacturers pack these so-called 'smart pills' with a cocktail of plant substances like Ginkgo biloba, lion’s mane mushroom, nutrients like B vitamins or choline, amino acids like L-theanine or taurine, and antioxidants found in citrus fruits, ginseng, green tea and red wine.
Some even add caffeine, which in moderation, can aid concentration, according to Dr. Cahan.
Jessica Caldwell, director of the Women’s Alzheimer’s Movement Prevention Center at the Cleveland Clinic, admitted some short-term cognitive benefits for specific ingredients in these supplements, notably caffeine. But the main challenge remains: these formulations have not been well studied in human clinical trials.
Here's a proven brain booster too many of us avoid--exercising. You can start by reading our post, "Get Your Ass To the Gym."
Claims of improved memory with Ginkgo biloba supplementation were found in older studies on dementia patients, only to be contradicted by more recent research. "In fact, it found that ginkgo supplements did not seem to help any health condition", the New York Times reported.
The conundrum extends to L-theanine, an amino acid found in green tea added to some supplements for its supposed association with better concentration and lower stress. However, "No large, rigorous trials have shown that L-theanine improves cognition," remarked Dr. Pieter Cohen, associate professor of medicine at Harvard Medical School.
D. Craig Hopp, a deputy division director at the National Center for Complementary and Integrative Health, encapsulates the issue succinctly, "There’s obviously a lot of marketing attached to these things, which makes it sound like they have an air of scientific credibility." However, he warns that if one "dig deeper into that science, it’s sometimes rather shaky."
Alarmingly, some nootropics were found to contain unapproved or unlisted stimulant drugs, revealed Dr. Cohen. An example? Phenibut, a drug used in Russia for treating mood disorders and alcohol withdrawal, potentially addictive and undisclosed on product labels.
The Food and Drug Administration (FDA), does not test or rigorously regulate these supplements for safety and effectiveness, adding another layer of risk for consumers. As an F.D.A. representative noted, the agency steps in only when a supplement "is unsafe or otherwise violates the law".
Manufacturers often embellish their products with impressive claims that have yet to stand the test of rigorous human clinical research. A
n apt example is Dan Freed, co-founder of Thesis, a company that sells supplement blends marketed as focus enhancers. He admitted that no independent clinical trials confirmed the efficacy of their products, despite internal testing suggesting otherwise.
This pattern isn't unique to Thesis. The representative from Bright Brain, a company selling a "smart pill" supplement, also stated that their products had not been evaluated in clinical trials, advising potential customers to consult their physician before use.
While these disclaimers might seem responsible, they hint at a more significant issue: the lack of substantiated scientific evidence for these 'brain-boosting' claims. E
ven Dr. Joanna Hellmuth, a neurologist at the University of California, San Francisco, shared a similar sentiment. “I understand the desire for exceptionalism, but I think that at this point the science isn’t really there," she told the New York Times.
Given the sketchy scientific evidence behind these cognitive enhancers, what can one do to actually improve focus and overall brain health? Well, it seems like we might have to turn to the pillars of overall health that we've known all along: sufficient sleep, regular exercise, and a balanced diet.
Dr. Hellmuth reiterated the importance of adequate sleep for maintaining concentration, highlighting the negative impacts of sleep deprivation. She also emphasized the association of regular exercise with better long-term brain health, recommending the federal health guidelines of 150 minutes of moderate-intensity physical activity and two days of muscle-strengthening activity per week.
A balanced diet, particularly one rich in colorful fruits and vegetables, fish, whole grains, and leafy greens, is also linked with better long-term brain health, even if more research is needed to fully understand this relationship.
One exception might be Vitamin B12, as deficiencies (though not common) can affect your focus. But again, before popping any supplement, it's essential to consult with a health professional. If you're taking care of your sleep, exercise, and dietary needs and still struggling to concentrate, a visit to the doctor might be the best first step.
It's crucial to approach the nootropic hype with a healthy dose of skepticism. As consumers, we are attracted to the idea of cognitive enhancements – the allure of better focus, sharper memory, and mental clarity is indeed compelling. But as Dr. Hellmuth reminds us, “If this was effective and widespread, we’d all be doing it."
In the face of sparse scientific evidence, unclear regulations, and the possibility of unlisted, potentially harmful ingredients, it seems that traditional health pillars of a balanced diet, regular exercise, and adequate sleep still hold the key to improved cognition and overall brain health.
As we traverse the final frontier of medical science, we must be mindful not to let our quest for cognitive enhancement lead us into uncharted and potentially hazardous territories.