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I think it’s a fairly well know fact that a person with less muscle will have a slower metabolism (all things being equal). I think this is one of the key reasons that many people gain weight as they age but why and how does this happen?
Consider this scenario: Someone young & strong carries their groceries from the car to the house 6 bags at a time, at some point they cut back to 4 at a time and eventually they have 1 bag in each hand and that’s all they can handle. This doesn’t happen overnight but is a gradual decline. If you think about it I’m sure you can come up with many examples of things that young/healthy/strong people do that older people don’t (moving furniture alone, taking stairs two at a time, sprinting to catch a bus)
Cardio exercise such as walking and step aerobics are…
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