By learning the effect of the hormones, we can apply practices to support balance when the hormones are not being produced. (theayurvedaexperience.com)
And very few herbs have been studied to learn their effect on nursing infants — so even the experts aren't completely sure what's safe and what's not. (babycenter.com)
However, texts should also not be too easy because the optimal learning effect will only be triggered once the new learning content is slightly above the current level of proficiency of learners. (sciencedaily.com)