In fact, a regular bedtime, especially an early one, was found to have the most significant positive developmental effects on children 4 years of age. (parentingsquad.com)
In fact, the few studies that have looked at the arrangement's developmental effects suggest the opposite. (slumbersounds.com)
It is well known that exposure to some chemicals during pregnancy can cause developmental effects that may not manifest until much later in life. (sciencedaily.com)