Is there a scientific backed study on the age old Chinese tradition called "ge lai"? How do you go about it? Is it only being practiced by Chinese?

I didn't practice "ge lai" and I'm not Chinese but upon reading about it, I can say it's one of the more reasonable post-partum traditions I've come across. Giving birth is a strenuous process--not to mention the past nine months of developing a child all alone, after its conception. Therefore, confinement for mothers would be really helpful for them in order to recover. Modern science can actually back this age-old Chinese tradition. Moms should really be given rest whenever possible because conceiving, giving birth and taking care of a baby is indeed an overwhelming job. So much overwhelming that it affects not just a mom's physicality, but as well as her mental being. Hence, there are instances of baby blues, post-partum depression, or worst, post-partum psychosis. In Filipino culture, it's appropriated as "binat." I agree with Yuna. At the end of the day, every post-partum tradition is just a version of another that's practice from a different culture.