For millions of people, losing their sense of smell quietly reshapes daily life. Meals lose nuance, familiar places feel ...

Microplastics were found in the olfactory bulbs of eight of 15 human brains at autopsy. A total of 16 different synthetic polymer particles and fibers were identified in olfactory bulbs. The olfactory ...

New research reveals that microplastics can penetrate the brain through the nasal passages, prompting urgent questions about their impact on human health and the environment. Study: Microplastics in ...

Exposure to air pollution–derived ultrafine particles alters gene transcription by epigenetic mechanisms, a new study shows. The changes affected, for example, cellular survival. The study, led by the ...