Complex sentence: Although water is vital for life, the structure of this water in the cytosol is not well understood, mostly because methods such as nuclear magnetic resonance only give information on the average structure of water, and cannot measure local variations at the microscopic scale.
Split into simpler sentences: Although water is vital for life, the structure of this water in the cytosol is not well understood. This is mostly due to the fact that methods such as nuclear magnetic resonance only give information on the average structure of water, and cannot measure local variations at the microscopic scale.