The phrase "ages during which" is correct and usable in written English.
It can be used to refer to specific time periods in which certain events or conditions occur.
Example: "The study focused on the ages during which children develop their language skills most rapidly."
Alternatives: "periods in which" or "times when".
There have been some seriously barbarous ages, during which human sacrifice was common.
Which goes to a theory of mine: I think that just as there are ages during which your brain can best learn new languages, there are ages when you are particularly open to certain songs.
The pressure occurs at ages during which we aren't even cognizant of who we really are as even very young children have accounts; lucky for me Friendster, Myspace and Facebook only were around in high school so the early part of my life was shielded.
A major study of more than 1,000 infants, published in the Annals of the New York Academy of Sciences in 1988, found that instances of slowed heart rate and interrupted breathing during sleep are common in even healthy infants, and that most of these abnormalities vanish before the babies reach the ages during which SIDS peaks — between about 2 months and 4 months old.
Overall, our findings suggest that vervet infants recognize the correspondence between the faces and vocalizations of another species and that they do so at ages during which human infants already exhibit evidence of perceptual narrowing.
The appealing aspect of this hypothesis is that it implies that this huntingtin function is more important as the human brain ages, during which time metabolic stresses are known to increase, along with decreasing mitochondrial efficiency.
In this study, LM11A-31 (50 or 75 mg/kg) was administered orally to two AD mouse models, Thy-1 hAPPLond/Swe (APPL/S) and Tg2576, at age ranges during which marked AD-like pathology manifests.
As is evident from Table 3, some the of the most striking improvements in participants' understanding related to the age ranges during which men are at risk for testicular cancer and the consequences of treatment on fertility.
This is a marvelous book about an age during which people could afford "marvelous stuff".
The current epoch, the Holocene, is the 12,000 years of stable climate since the last ice age during which all human civilisation developed.
The two or three centuries following these disasters were indeed the most flourishing of the Aegean Bronze Age, during which Cretan civilization reached its zenith.
