Interacting with Other Systems. The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. The circulatory system also carries chemical signals from your endocrine system that control the speed of digestion.
Some types of fish and shellfish contain healthy omega oils that will help the development of the fetus's nervous system. However, some contain toxins and possibly viruses (oysters, for example) and must be avoided during pregnancy.
Here are some resources that you can use if you want to be tobacco-free :
- state phone anti-smoking/tobacco quitting services, where you can talk to the experts about the best steps to be tobacco-free
- Nicotine anonymous , a place created to rehabilitate nicotine addict
- County Health department, where you can find all kind of information about how to quit using tobacco products
