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A possible reason for these findings is that LT health effects are difficult for adolescents to relate to because they possess an attitude of immortality or insusceptibility to physical risks.
For example, mPE was introduced as a direct and safer alternative to flexible PVC and EVA in medical devices at comparable cost, given its better processability, mechanical properties, thermal stability, optical properties, improved sealability, nontoxicity, odor neutrality, insusceptibility to post-sterilizing discoloration, and reduced permeability to moisture and ammonia (38, 39).
Other qualities include self-monitoring capability and insusceptibility to external influences, such as moving metal parts, vibration and frequency controls.