A low hemoglobin count can also be due to blood loss, which can occur because of: 1  Bleeding from a wound. 2  Bleeding in your digestive tract, such as from ulcers, cancers or hemorrhoids. 3  Bleeding in your urinary tract.  Frequent blood 1  donation. Heavy menstrual bleeding.
The brain is the control centre for your body and it sits in your skull at the top of your spinal cord. The brain has three main parts. 1  The cerebellum (say se-re-bell-um). The brain stem, that controls a lot of the 'automatic' actions of your body such as breathing and heart beat, and links the brain to the spinal cord and the rest of the body.
The hippocampus, Latin for seahorse, is named for its shape. It is part of a system that directs many bodily functions: the limbic system.This system is located in the brain's medial temporal lobe, near the center of the brain.The hippocampus is involved in the storage of long-term memory, which includes all past knowledge and experiences.Scientists are unsure exactly how this occurs.his system is located in the brain's medial temporal lobe, near the center of the brain. The hippocampus is involved in the storage of long-term memory, which includes all past knowledge and experiences. Scientists are unsure exactly how this occurs.