Cellphones emit radio frequency radiation such as micro waves along with newer smart phones using electromagnetics to read our mood and/or control our mood, along with everything they do not disclose.
Wikipedia: Wireless device radiation and health
https://en.wikipedia.org/wiki/Wireless_device_radiation_and_health
Mind Control by Cell Phone
https://www.scientificamerican.com/article/mind-control-by-cell/
Scientists manipulate brain cells using a smartphone
https://newsroom.uw.edu/news-releases/scientists-manipulate-brain-cells-using-smartphone
Mobile Phone Mind Control
https://www.technologyreview.com/2010/03/31/205002/mobile-phone-mind-control/
Smart devices can now read your mood and mind, leading to a new set of concerns about technology and consent
CAN MOBILE PHONES CONTROL OUR MINDS?
https://www.tvfcommunications.com/thought-leadership/can-mobile-phones-control-our-minds/
Effects of mobile phone electromagnetic fields on brain waves in healthy volunteers
https://www.nature.com/articles/s41598-023-48561-z
UTILIZING 5G HAS ENORMOUS SURVEILLANCE CAPABILITIES AND WILL BE ABUSED AT THE WHIM OF LAW ENFORCEMENT AND THE INTELLIGENCE ESTABLISHMENT.
https://www.fcc.gov/ecfs/search/search-filings/filing/1092223856297