It may be perfectly healthy that their newborn is sleeping this long so unless they start displaying other strange symptoms that cause concern, there is no need to worry. They could suggest that they are concerned to the midwife if they feel anxious, to get a professional opinion.
One method is taking vitamins. Another method is eating healthier.
cleaning oil spills, cleaning pollution and generating electricity, metabolising methane into methanol, converting newspaper to biofuel and treating depression to anciety.
hope some of my information helped
Answer:
Circulation and Digestion
The muscular system and the circulatory system work with the small intestine. The muscular system helps the small intestine break down food. The circulatory system works with the small intestine and gets nutrients to the rest of the body.