http://www.almotamar.net صحيفة إلكترونية يومية تصدر عن حزب المؤتمر الشعبي العام (اليمن) http://www.almotamar.net/3608.htm 2007-10-28 It's easy, inexpensive, amazingly good for you, and has few undesirable side effects. Yet it's all to often overlooked when people consider which form of exercise is best for them. It is walking, and the evidence continues to mount that three brisk walks a week may be the most health-conscious thing you can do for your body. The results surprised even JoAnn Manson, MD, MPH, DrPH, and she's supposed to know all about the subject.