The power at which tDCS is operated at is pretty low, after you account for resistance the voltage seems less scary. For me I get tDCS at ~13-17hz, 60hz, and 160hz at 0.5 to 1.75 milliamp. The different hz frequencies are to target different brain waves, (alpha, beta, delta, gamma, etc)

If you think it's still strong enough to affect brain function, I don't really see how the power being "pretty low" really makes things less scary. I mean, I guess you won't get electrocuted but messing up your brain is messing up your brain, regardless of how much power you used to do it.

>If you think it's still strong enough to affect brain function, I don't really see how the power being "pretty low" really makes things less scary.

Drinking a cup of coffee is "still strong enough to affect brain function", and yet we do it every day. In fact several times...

Using electricity that's "still strong enough to affect brain function", but small to have any major effect (they've tried this thing tons of times in clinical settings) is not that different...

> Drinking a cup of coffee is "still strong enough to affect brain function", and yet we do it every day. In fact several times...

Yes, the crucial difference being that you are not exactly breaking scientific ground by sipping a cup of coffee. The effects coffee has on our brain and body, both short and long term, are well researched and sufficiently tested.

That sounds like tACS. tDCS is DC -- no frequency components.