Lately, we have noticed a lot of social media chatter about Wi-Fi routers and why they must be turned off at night. But is there any relevant science behind this? Let’s ask experts what really happens to the body when you turn off Wi-Fi routers for seven days at night.
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Dr Hiran S. Reddy, consultant physician, diabetologist and critical care specialist, Gleneagles Hospital, Lakdi Ka Pul, Hyderabad, said that turning off your WiFi router at night for a week is unlikely to produce any major physiological changes for most individuals.
“WiFi devices emit low-level, non-ionising radiation, which current scientific consensus deems safe at everyday exposure levels. However, for people who report heightened sensitivity to electromagnetic fields (EMFs), this change may offer perceived relief from symptoms like headaches, sleep disturbances, or mental fatigue — although clinical evidence supporting electromagnetic hypersensitivity remains inconclusive,” said Dr Reddy.
Adding, consultant neurologist Dr Sudhir Kumar, Apollo Hospitals, Hyderabad, said that most studies have been done among animals, and there is no conclusive evidence that Wi-Fi routers disrupt melatonin production from the pineal gland or interfere with sleep in humans. According to him, Wi-Fi routers emit non-ionizing radiation in the 2.4 GHz or 5 GHz frequency bands.
“These are very low-energy EMFs, far less than what’s emitted from a cellphone held close to the head. At normal household distances (1–2 meters or more), the intensity drops off sharply, making it unlikely that a standard wifi router significantly suppresses melatonin production or disrupts pineal gland function. Blue light, on the other hand, does interfere with pineal gland function and adversely affects sleep quality and quantity,” said Dr Kumar.
Does wifi affect sleep directly? (Photo: Getty Images/Thinkstock)
Additionally, reducing nighttime digital engagement may promote better melatonin production, the hormone responsible for regulating the sleep-wake cycle. The benefits may be more tangible in the indirect effects on sleep quality. This is particularly relevant when WiFi use is associated with prolonged screen exposure. “Disabling wifi can limit late-night screen use, reduce digital distractions, and help create a more restful sleep environment. Quality sleep plays a crucial role in cognitive function, immune response, and overall health,” said Dr Reddy.
While turning off Wi-Fi for seven straight days may not yield direct biological effects, it can support healthier bedtime routines and improved sleep hygiene—both of which contribute meaningfully to physical and mental well-being.
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DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your health practitioner before starting any routine.
