Phone charging under pillow causes fire risk not cancer
A World Health Organization study clarifies that sleeping with a charging phone under a pillow poses a fire hazard rather than a radiation threat.
Fire risk from trapped heat
Sleeping with a smartphone under a pillow while it charges creates a dangerous situation. The device temperature rises because airflow cannot dissipate into the open air normally. This trapped heat can damage the battery and shorten its lifespan significantly. In rare documented cases, this overheating leads to burns or fires for users.
Battery degradation and thermal runaway
Lithium-ion batteries release heat as they draw power during the charging process. Restricted airflow prevents this heat from escaping safely without causing permanent hardware problems. Repeated exposure accelerates the breakdown of battery cells and warps internal components quickly. Thermal runaway occurs when a phone generates heat faster than it can remove it.
Radiation concerns are unfounded
Cell phones emit non-ionizing radiofrequency radiation that lacks the strength to damage DNA. Research has extensively studied this low-energy form of radiation over many years. A two-year-old WHO-commissioned study confirms cancer risks from this radiation are quite unlikely. Users should focus on fire safety instead of worrying about radiation exposure levels.
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