Tech millionaire and biohacker Bryan Johnson reveals how he eliminated 85% of microplastics from his body in just a year using a simple daily sauna habit. Learn more about his detox journey and health experiments.
Bryan Johnson, the millionaire tech founder known for his biohacking experiments, has shared his latest milestone in his quest to reverse his biological age—eliminating 85% of microplastics from his body. Johnson, 48, has been an advocate for extreme measures to improve his health and extend his lifespan, and this recent achievement is part of his ongoing mission to rejuvenate his body.
In a candid post on X (formerly known as Twitter), Johnson detailed how he successfully reduced the microplastic levels in his body, providing an inside look at his unconventional approach to health and well-being. Microplastics—tiny particles smaller than a grain of sand—are pervasive in the environment, found in water, food, and even the air we breathe. Over time, they accumulate in human organs, potentially causing inflammation, infertility, and other health issues.
The Startling Impact of Microplastics
Microplastics have become a global concern due to their widespread presence and potential harm to human health. Research has shown that these particles can induce oxidative stress in the male reproductive system, leading to testicular inflammation, reduced testosterone levels, and compromised sperm production and motility. Recent studies revealed microplastics in human testicular and semen samples, highlighting the concerning effects they may have on fertility.
For Johnson, reducing microplastics from his body became a key goal in his biohacking journey. He reported a significant decrease in both blood and ejaculate microplastic levels, noting that the number of particles per milliliter had dropped dramatically over the past year. In November 2024, Johnson had 165 microplastic particles per milliliter of ejaculate, but by July 2025, that number had dropped to just 20 particles. His blood also showed a similar improvement, with microplastic levels falling from 70 particles per milliliter in October 2024 to just 10 particles per milliliter in May 2025.
How Bryan Johnson Did It: The Simple Method Behind the Detox
Unlike some of his other health strategies, Johnson’s method to detox from microplastics was relatively simple but effective. He credited daily sauna sessions as a key factor in his success. By spending 20 minutes a day in a sauna, Johnson believes he was able to sweat out the harmful microplastics from his body, a process that has been increasingly recognized for its detoxifying benefits.
In addition to regular sauna use, Johnson made lifestyle changes to limit his exposure to plastics. He stopped using plastic microwavable containers and plastic cutting boards, opting for safer alternatives. To further purify his water, Johnson invested in a $600 reverse osmosis water system. This device uses a high-pressure pump to force water through a barrier with extremely small pores, allowing clean water to pass while trapping contaminants like microplastics.
The Ongoing Microplastics Crisis
While Johnson’s detox journey is impressive, the global issue of microplastic pollution remains a significant health concern. Microplastics are now found in nearly every corner of the planet, and ongoing research continues to explore their long-term effects on human health. Johnson’s claim of successfully reducing his microplastic levels by 85% highlights the potential of certain detox methods, but it also serves as a reminder of the scale of this environmental issue.
Conclusion: A Step Toward a Healthier Future
Bryan Johnson’s success in detoxing 85% of the microplastics from his body demonstrates the power of simple lifestyle changes and consistent health practices. By incorporating daily sauna use, reducing plastic exposure, and using advanced filtration methods, Johnson has taken another step toward achieving his goal of reversing his biological age. As more people become aware of the risks posed by microplastics, Johnson’s experiment could inspire others to take action in their own health journeys.
