Here is a description of a few believed to play a role in depression: 1  Acetylcholine enhances memory and is involved in learning and recall. 2  Serotonin helps regulate sleep, appetite, and mood and inhibits pain. Research supports the idea that some depressed people have reduced serotonin transmission.
Osteoporosis is a disease in which the bones of the body become brittle making them easier to fracture (a fracture means the same thing as a break).The hips, spine and wrist are usually the first to break. Osteoporosis gradually weakens the bones so that they become susceptible to the slightest trauma.cientists are still not 100 percent sure of the causes of osteoporosis. Bone mass decreases in women naturally between 1 to 5 percent every year after the age of 40. This rate is only about 1 percent in men.
Osteoporosis is a disease where decreased bone strength increases the risk of a broken bone. It is the most common reason for a broken bone among people who are old.Bones that commonly break include the back bones, the bones of the forearm, and the hip.Until a broken bone occurs there are typically no symptoms. People with scoliosis of unknown cause also have a higher risk of osteoporosis. 2  Bone loss can be a feature of complex regional pain syndrome. 3  It is also more frequent in people with Parkinson's disease and chronic obstructive pulmonary disease. 4  People with Parkinson's disease have a higher risk of broken bones.