The Functions of Parasympathetic Nerves

Autonomic nerves are divided into the sympathetic and parasympathetic nerve. Mainly, the sympathetic nerve works during the daytime and facilitates energy consumption. When night comes, the parasympathetic nerves start working. Energy consumption slows and the body works on fixing damaged cells.

Dr. Shigeki Shibazaki, a Ph. D. of Nippon University has concluded after his investigations that BMAL-1, a sort of protein which takes part in our body's rhythmic clock (circadian rhythm), has a close relation with the accumulation of inner fat.

The BMAL-1 is hardly generated during the daytime but is produced during the night time. Based on this fact, researchers try to conclude that gaining weight can be avoided by not having meals late at night.
It is reported that BMAL-1 is generated most actively between 10pm and 2am, which is 15 to 20 times more than what is produced around 3am (Asahi Newspaper on September 2005).

The level of BMAL at different times 

based on a 24-hour clock. 

There are many areas that have yet to be researched in our body functions as well as diet theory. However, it is evident that going to bed right after eating contributes to gaining weight and more and more researchers tend to think the reason is because of BMAL-1.

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