Continuous sympathetic nervous system activity depletes energy because the body cannot enter the parasympathetic state.

“But as we are always going on in the brain, the sympathetic nervous system is going on and on and on, and it only takes energy. And because we don't know how to get into the parasympathetic nervous system, which enables the cell production to make new energy, we are not able to disconnect therefrom. Therefore we get no new energy.”