Which cordless phones are safest? Cell phone are worst?

I have heard lots of news about health risks with cell phone, but not
much on cordless phones.   I assume they have similar health risk as
cell phone.   If so, which cordless phone frequencies are safer
(900Mhz, 2.8Ghz, 5.8Ghz or 6.0 Dect)?     If I had to pick, which is
the lesser of the evils? And yes, I know that using a corded phone is
the best way, but sometimes I need the convenience.  And yes, I do
realize they might not be as bad as some say, but there is nothing
wrong with being cautious.    Thanks for the input.