Microplastics can invade the olfactory bulb of the human nose, which transmits smells to the brain, a new study found.

Microplastics have been found in brain tissue above the nose, suggesting a likely passageway for microscopic plastic shards and fibers to enter the brain after already being discovered in nearly every organ in the human body,

Scientists in Brazil found microplastics in the brain tissue of cadavers, according to a new study published Monday in the journal JAMA Network Open.

However, the new study suggests that there's "a potential pathway for the translocation of microplastics to the brain" via the olfactory bulb, according to a team led by Luis Fernando Amato-Lourenco, of the Free University Berlin and Thais Mauad, an associate professor of pathology at the University of Sao Paolo in Brazil.

Researchers have found evidence of microplastics in the olfactory bulbs of the human brain for the first time, after detecting them in the colon and the bloodstream.

Microplastics are everywhere. Researchers have found them in water sources in the most remote areas of the world. However, one group of tiny creatures seem immune to the plastic problem, even in waters that are absolutely inundated with micro and nano plastic particles.