Answer: An emission or absorption line in a spectrum that arises when an electron moves between two energy levels in an atom. A jump to a higher level requires an input of energy, and produces a dark absorption line. A drop to a lower level releases energy, producing a bright emission line.
Answer: Motor functions during mental illness may occur part and parcel of the illness or maybe as a side effect to the antipsychotic used. Main motor function disturbance that occurs as part and parcel of the illness is "Catatonia". There are others. Antispychotics (drugs used to decrease the symptoms of the psychotic illness), may cause "extrapyramidal symptoms" (EPS). These include: dystonia, akathisia and rabbit syndrome. There are others. "Neuroleptic malignant syndrome" (NMS) is the most dangerous. The motor function disturbance that occurs with it is "severe rigidity". This can be lethal.
Several generations of antipsychotics have been produced. The newer generation is less liable to cause EPS but some of them are the culprit for NMS especially if elderly, child, mentally subnormal or with an organic lesion in the brain (dementia, tumor...etc). Doses must be given in minimal and raised (start low and go slow).NLM (National library of medicine) has excellent info about medication.
Answer: I believe it causes sleep disturbances for most people regardless of age. It escalates the chances of waking up to go to the bathroom. Alcohol is known to help people fall asleep but even more well known to prevent people from getting good sleep.
Answer: There are many drugs that can help control anxiety. Muscle relaxers, etc. But there are other ways to control anxiety rather than medicine. Try practicing thinking to yourself and tell the anxiety to go away. This always helped me...tell yourself "im young and healthy".