| http://www.w3.org/ns/prov#value | - This means that there is less stress on girls??? bodies, allowing puberty to start earlier.Increased rates of obesity are thought to be a factor, as girls are now younger when they reach the level of body fat required to trigger puberty.There is a suspicion that increased levels of environmental chemicals that mimic the effects of hormones are causing girls to start puberty earlier.Interesting res
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