Our bodies produce vitamin D after the skin is exposed to sunshine. But ideally your baby won't be sunbathing at all in the first six months, so he won't get enough vitamin D from the sun â even if you live in a relatively sunny place, such as Florida.
Or they should, anyway. While leaves will always change color as the amount of sunlight wanes, several weather conditions can affect how brilliant they become. High heat or drought can rob leaves of their brilliance, or make leaves drop early. Insufficient rain in September can also hurt peak color.
There is so much chlorophyll in an active leaf that the green masks other pigment colors. Light regulates chlorophyll production, so as autumn days grow shorter, less chlorophyll is produced. The decomposition rate of chlorophyll remains constant, so the green color starts to fade from leaves. At the same time, surging sugar concentrations cause increased production of anthocyanin pigments.