Is it true that using the automatic swinging yao lan (sarong) can cause damage to the baby brain due to constant swinging motion?

I have used since baby was 2 mths. Now he's 2 years old. He can sleep well.

I Am using it as long as you don't swing too hard it is ok

thanks

I use the manual even though hand tired but safety.

Yes to a extent. Do not swing it too hard