I'd say (and I am a biologist) there is truth to it, but we also didn't evolve sitting all day. There would be much less back problems if would walk and stand m

I'd say (and I am a biologist) there is truth to it, but we also didn't evolve sitting all day. There would be much less back problems if would walk and stand more because our muscles would be trained constantly. Our bodies are things that wear out when not using them.