Charging a smartphone under a pillow poses a fire risk due to overheating, not a cancer risk from radiation. Lithium-ion batteries generate heat during charging, and a pillow restricts airflow, preventing proper heat dissipation. This can degrade the battery, damage components, and in rare cases, lead to thermal runaway and fire, especially with uncertified chargers. The World Health Organization has indicated that the radiation emitted by phones is non-ionizing and unlikely to cause cancer. AI
RANK_REASON Article discusses a common user behavior and its risks, citing a health organization, but does not announce a new product, research, or policy.
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