One of – if not the best – reviews I have ever read.
Honest, pointing out both knowledge/expertise and no to little knowledge/expertise.
Well written!
…and, understanding the subject pretty well, I whole-heartedly agree with this excellent post!
Well done, Sir/Madam!

Hello,

Consider this educated opinion. Skeptic, engineer, knowledge in the topic (Electronics Engineering), as well some personal research into the physio-biological aspects of EMF/EMI.

TL;DR:
– EMF is an actual issue.
– A lot of EMF is caused by cheap light”bulbs” / “brick” power supplies however. And powerlines.
– ADHD causes may or not be related to EMF instead of the actual device usage (mini-games, social media). Dopamine related.
– ANT+ devices seem to have minuscule emissions (1/3rd on log scale of WiFi).
– Air quality, frequent exercise and activities are better ways to focus effort on.

Background and general info:
In contrary to other comments, I do agree that EMF/EMI is a real issue. Both for people and electronics. Also 20 minutes next to cell tower antennas can and does make people sick. Which is why there are exposure limits. The issue with all slow killers, like “low” levels of exposure over time, is they are easy to dismiss as they are hard to research and the research is underfunded. Also anti-lobby, illegal practices, and fake or meaningless research by big corps. This spans multiple areas.

However most people get too sidetracked focusing on devices that are wireless and expected to emit and forget about cheap (mostly) Chinese power adapters, bulbs, and more that are terrible in this aspect. As well as environment itself (the sheer number of devices and electromagnetic waves emitted by neighbors, in public spaces, towers, “smart” utility meters and more. Further research suggests that the effects of EMF are much more prominent when the body is in regenerative state, aka sleep. I am providing no specific statement on ADHD, as I have insufficient data/research. The systemic dopamine abuse, in terms of what brain perceives as a “reward”, in connection with mobile games and/or social media seems to be the actual reason for ADHD development in many cases (small effort leads to reward, in contrast to long work leading to a reward). When it comes to “short term” effects of EMF in all normal situations, “all” people with strong reactions seem to have placebo effect instead of actual reactions.

If you want to do something for your kids, rather than worrying about ANT+ devices:
Get a 200% overrated quiet air purifier, put phone at arms length minimum when sleeping, buy high quality power adapters (UL Listed ideally) and light powersupplies/”bulbs” for use in bedrooms, window-less PC case, and make your kids exercise 4+ days a week, good nutrition incl. protein. Exposure (regardless of how much it affects us) is something you mostly cannot control. Apart from moving to village or rural, or very least suburbs and limiting the devices in the house.

Specific to ANT+ devices:
While I do not have sufficient knowledge how power is managed (if at all) on the phone side, ANT+ sensors usually transmit at max of ~4dBm, in contrast to WiFi at ~20dBm (which on routers is always at max, phones may or not vary). This is on a logarithmic scale, of course.

Use:
Further as transmit power falls by square of distance, my recommendation would be not to bother with the ANT+ devices (you can always review max transmit power from device specification). The communication from phone to the sensor should be minimal. But to reduce exposure when in use, placing phone 1 to 2.5 meters away should be enough. Again this is only when in use and would not bother about much in comparison to all other devices that you are going to be (by choice or not choice) exposed to.

Live well.

“I wouldn’t deem it safe. Wi-Fi and Bluetooth transmit a lot of EMF. Many studies shows that kids nowadays are more prone to develop ADHD due to massive amount of EMF in their environment.”

That’s total BS. What, you read “many studies” on FB? You have NO idea what you are talking about…. It’s low power, low bit rate with a signal that travels no more than 5 feet. Wouldn’t harm a fly.

Since ANT uses the same frequency as wifi or bluetooth it is just as safe to use as those technologies.

Regards,
Adam

Thanks