<div class="gmail_quote">On Thu, Aug 30, 2012 at 11:24 AM, BillK <span dir="ltr"><<a href="mailto:pharos@gmail.com" target="_blank">pharos@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div id=":15t">"He notes that calorie restriction produces a bigger effect on<br>
longevity "if the control group is couch potatoes".</div></blockquote></div><br><div>Seems to me that calorie restriction's effect on longevity is independent of any control group. If the CR and control groups have different levels of activity, then the results observed may be a result of that, rather than CR.</div>
<div><br></div><div>-Dave</div><div><br></div>