It is the nervous system, basically the upper kinetic chain included the fingers, wrists, elbows, upper arms and shoulder blades and spinal column. for those to properly work and for the kinetic chain to work your brain uses neurons to send messages to those parts of the body to move using the kinetic chain!!
its slowing it down because if you eat snacks in between meals your metabolism will work faster but if you just eat 3 square meals alone then it slows down as it dosent have to digest as much in a certain time period.
