Microplastics, tiny particles of plastic, have been found in the brain, causing blockages and affecting cognitive functions. Studies on mice show that these particles can lead to depression, anxiety, and increased stroke risk. They enter the body through food, inhalation, and skin contact, posing serious health concerns for humans. Microplastics have been detected in various parts of the body, including the brain. A new study reveals how microplastics travel to the brain and block blood flow, leading to life-threatening issues. Researchers tracked microplastics in mouse brains and found them blocking blood vessels. This can disrupt tissue function and affect local blood circulation, impacting cognitive health. Mice with these blockages showed deteriorated movement, memory, and coordination. When the blockages were removed, their cognitive behavior improved. The study highlights the potential long-term effects of microplastics on neurological disorders like depression and cardiovascular health. While mice are not the same as humans, they share biological similarities. Understanding these effects can help scientists learn more about how microplastics may impact human brains. Overall, the study highlights the harmful effects of microplastics on the brain and the importance of reducing plastic pollution to protect our health and the environment. Scientists are working to understand how these tiny particles can have such significant impacts on our bodies and brains. It is crucial to be aware of the dangers posed by microplastics and take steps to limit their exposure.