However, Styrofoam’s war on my sanity is the least of its evils ... “In 2018, the World Health Organization upgraded styrene, which is the major building block of polystyrene, from ‘possibly ...
“In an Iyengar Yoga class, for example, you'd likely use a wooden brick, but in other classes, people prefer cork or foam because they are lighter.” Wooden blocks are more stable and ...