Re: Big data is good for the NHS and good for all of us
@"For example, a recent study looking at over 9 million person years has recently showed that if you are overweight in adolescence, there is a much greater risk of stroke as an adult"
Indicated not shown.
Statistics, economics and all the other lying/gambling maths are neither absolute nor definate and since they are so open to misinterpretation/manipulation they should always to be taken with a pinch of salt.
Not having seen the particular study, that you fail to refer to, then it is possible they you just misunderstood it.
To make things easier for you to understand define "overweight" or IQ or any of the other stupidly biased misrepresentations that are kicked around in the media to confuse the ignorant, they are not facts they are mantra.