Can synthetic fabrics shed microplastics that affect your brain?

What's actually in it

Polyester, nylon, and acrylic clothing are all made from plastic. Every time you wear, wash, or dry these fabrics, they shed tiny fibers called microplastics. Some are so small they're called nanoplastics. You breathe them in. They settle in dust around your home. They end up in your food and water too.

What the research says

A 2026 review in Environ Sci Technol looked at what happens when textile-derived micro- and nanoplastics get into the body. The findings are concerning. These tiny particles can cross the blood-brain barrier, the body's filter that normally keeps harmful things out of the brain.

Once inside, the particles can trigger inflammation and oxidative stress in brain cells. Over time, that kind of damage is linked to problems with memory, learning, and mood. The review flagged this as an emerging risk that most people aren't aware of.

The smallest particles, nanoplastics, are the most worrying. They're small enough to enter individual cells. And synthetic textiles are one of the biggest sources of these particles in everyday life. Your couch, your bedsheets, your workout clothes: they all contribute.