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American Focus > Blog > Tech and Science > Surprise Link Between Menthol And Alzheimer’s Found in Mice : ScienceAlert
Tech and Science

Surprise Link Between Menthol And Alzheimer’s Found in Mice : ScienceAlert

Last updated: May 26, 2025 1:40 pm
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Surprise Link Between Menthol And Alzheimer’s Found in Mice : ScienceAlert
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Menthol Shows Promise in Improving Cognitive Function in Mice with Alzheimer’s

Recent studies have revealed a surprising connection between the inhalation of menthol and improved cognitive abilities in mice with Alzheimer’s disease. Scientists have observed that the chemical compound found in menthol can potentially halt some of the brain damage typically associated with the disease.

The research, conducted by a team from the Center for Applied Medical Research (CIMA) in Spain and published in April 2023, showcased how menthol inhalation led to a reduction in the interleukin-1-beta (IL-1β) protein, a key regulator of the body’s inflammatory response.

Immunologist Juan José Lasarte highlighted the significance of these findings, suggesting that certain odors like menthol could serve as therapeutic agents for Alzheimer’s and other neurodegenerative conditions by modulating the immune and central nervous systems.

Notably, the study demonstrated that short exposures to menthol over a six-month period prevented cognitive decline in Alzheimer’s-afflicted mice and even improved the cognitive abilities of healthy young mice.

Smell diagram
Scientists looked at how smell affected memory. (Casares et al., Frontiers in Immunology, 2023)

Further investigations revealed that menthol not only boosted the immune response in mice but also enhanced their cognitive function through practical tests in the lab. The compound halted cognitive decline and memory deterioration in Alzheimer’s mice, along with restoring IL-1β levels in the brain to normal.

Moreover, manipulation of T regulatory (Treg) cells, responsible for immune system regulation, produced similar effects to menthol exposure, indicating a potential avenue for future therapeutic interventions.

Neuroscientist Ana Garcia-Osta emphasized the role of IL-1β in cognitive decline and highlighted the positive outcomes of blocking this protein, suggesting implications for treating various neurodegenerative disorders.

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Studies have long established the intricate links between olfactory stimuli and the immune and nervous systems, underscoring the potential of odors as modulators of health outcomes. The newfound correlation between menthol inhalation and cognitive enhancement opens doors for novel therapeutic approaches in Alzheimer’s and related conditions.

Surprising Link Between Menthol And Alzheimer's Discovered in Mice
Smells may trigger certain responses in the brain. (Mike Marchetti/Canva)

While these findings hold promise, further research in human subjects is essential to validate the efficacy of menthol as a therapeutic agent for neurodegenerative diseases. Immunologist Noelia Casares emphasized the importance of unraveling the intricate connections between the immune system, nervous system, and olfactory stimuli to pave the way for innovative treatments.

The study, published in Frontiers in Immunology, marks a significant advancement in understanding the potential role of odors and immune modulators in disease prevention and management.

An earlier version of this article was published in May 2023.

The Evolution of Technology in the 21st Century

In the 21st century, technology has evolved at an unprecedented rate, transforming the way we live, work, and communicate. From the rise of smartphones and social media to the development of artificial intelligence and virtual reality, technology has become an integral part of our daily lives.

One of the most significant advancements in technology in the 21st century has been the proliferation of smartphones. With the introduction of the iPhone in 2007, smartphones quickly became a ubiquitous part of modern life. These devices have revolutionized the way we communicate, access information, and stay connected with others. From texting and video calls to social media and online shopping, smartphones have fundamentally changed the way we interact with the world around us.

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Social media has also played a major role in shaping the technological landscape of the 21st century. Platforms like Facebook, Twitter, and Instagram have connected people around the world in ways that were previously unimaginable. These platforms have given individuals a voice and a platform to share their thoughts, ideas, and experiences with a global audience. Social media has also transformed the way businesses market their products and interact with customers, creating new opportunities for engagement and growth.

Artificial intelligence (AI) has emerged as another game-changing technology in the 21st century. AI-powered systems and algorithms are being used in a wide range of industries, from healthcare and finance to transportation and retail. These systems can analyze massive amounts of data, identify patterns and trends, and make predictions with a level of accuracy that was previously unattainable. AI has the potential to revolutionize many aspects of our lives, from healthcare and education to entertainment and transportation.

Virtual reality (VR) and augmented reality (AR) have also become increasingly popular in the 21st century. These technologies allow users to immerse themselves in virtual environments and interact with digital objects in ways that were previously impossible. VR and AR have applications in gaming, entertainment, education, and training, offering new ways to experience and interact with the world around us.

As technology continues to evolve in the 21st century, it is clear that we are living in an era of unprecedented innovation and change. From smartphones and social media to artificial intelligence and virtual reality, technology has transformed the way we live, work, and communicate. The possibilities are endless, and the future of technology holds exciting new developments that will continue to shape our world in ways we can only imagine.

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