Bluetooth earphones have become an everyday essential for millions of people, but concerns about their safety—particularly the risk of brain tumours—continue to circulate. A leading neurosurgeon, Dr Rupa Juthani, has addressed these fears by explaining what current scientific research actually shows.
According to Dr Juthani, there is no proven link between the use of Bluetooth earphones and the development of brain tumours. Drawing on large-scale research, she highlights that long-term studies involving nearly one million participants over more than a decade have found no association between typical Bluetooth device usage and tumour risk.
A key reason behind this is the type of radiation emitted by Bluetooth devices. Unlike harmful ionising radiation—which can damage DNA and potentially lead to cancer—Bluetooth technology uses non-ionising radiation. This form of radiation is considered low-energy and does not have the capacity to alter DNA in a way that would trigger tumour formation.
Interestingly, the neurosurgeon points out that using a mobile phone directly against the ear may expose users to higher levels of radiation compared to using wireless earbuds. The exposure can be greater during specific moments such as when a call is being connected or when the device is charging. For those looking to reduce exposure further, keeping the phone slightly away from the head during these times is recommended.
Beyond radiation concerns, Dr Juthani also highlights the importance of protecting hearing health. Using speaker mode when possible is considered the safest option, but when that is not practical, earphones are still a better alternative than pressing a phone directly to the ear. She also advises using devices responsibly and avoiding prolonged or unnecessary usage.
While myths around Bluetooth radiation continue to spread online, current scientific evidence suggests that everyday use of wireless earphones is safe when used as intended. However, as with all technology, moderation and mindful usage remain key.
