2024, NEJM
In the artery wall
Micro- and nanoplastics in arterial plaque were linked to higher risk of heart attack and stroke.
The fix: Swap the items that touch hot food and drink, heat is where shedding spikes.
9 things in Fitness



The guide
Gym kit is quietly synthetic: PVC mats, foam blocks, microfibre towels. Natural materials grip better and don't shed.
2024, NEJM
In the artery wall
Micro- and nanoplastics in arterial plaque were linked to higher risk of heart attack and stroke.
The fix: Swap the items that touch hot food and drink, heat is where shedding spikes.



What actually helps
Gym staples are quietly plastic, easy to upgrade.



The science
Gym gear is quietly synthetic, PVC mats, foam blocks, microfibre towels. Natural rubber mats, cork blocks, stainless bottles, and organic-cotton towels swap the plastics for materials that grip better and don't shed.
Bottled water, a gym staple, averages about 240,000 plastic particles per litre; a stainless bottle avoids it. · PNAS, 2024
Microfibre textiles shed synthetic particles; natural-fibre towels don't. · World Economic Forum, 2025
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