Global consumption of wearable healthcare technology is projected to surge 42-fold by 2050, reaching nearly two billion units annually. This growth is expected to emit 3.4 metric tonnes of carbon dioxide equivalent, with China and India contributing the most greenhouse gas emissions. A study published in Nature highlights ecotoxicity and e-waste concerns, suggesting that optimizing circuit architectures and substituting critical-metal conductors could significantly reduce environmental impact, more so than using recyclable plastics.