weighted vest

The weight vest is frequently used as a progression tool. A new study asks whether using a weight vest can improve sprint times.
I've had people tell me that wearing a weight vest around all day is beneficial. Is it, really? And if so, how? Scientists take a look and determine whether you should wear one while grocery shopping.
It has become the accepted standard if one trains in the style of the military that training involves wearing weighted packs and weighted vests. But, does it actually do any good?