This video explains how mechanical and chemical digestion break food down and how the small intestine’s adaptations increase surface area to speed up absorption into the bloodstream.
The digestive system is a group of organs that work together to change the food you eat into the energy and nutrients your body needs. After you consume food and liquids, the digestive system breaks ...
The central nervous system (CNS) consists of the brain and the spinal cord and controls most functions of the body and the mind. The CNS governs voluntary movements, such as walking, and involuntary ...
Plus, three habits to avoid.
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