  We present here the comparative study between the dynamics Choline and
Tetra-methyl ammonium bromide. This is well known that deficiency in Choline
would cause many severe diseases. No wonder why Choline is crucial component
for our nutrients and dietary requirements. We present here a comprehensive
study using all-atom molecular dynamics simulation combined with neutron
scattering technique for solute behavior in aqueous solution. The solvent
behavior is discussed in the follow up work
