The force of gravity is the weakest at the equator because of the centrifugal force caused by the Earth's rotation and because points on the equator are furthest from the center of the Earth. The force of gravity varies with latitude and increases from about 9.780 m/s2 at the Equator to about 9.832 m/s2 at the poles.
Also, pharmacological therapies such as sedative-hypnotics or antidepressants have been helpful in reducing the incidence of sleepwalking in some people. Sleepwalking is common in children and is usually outgrown over time, especially as the amount of deep sleep decreases.
In some cases, doctors will prescribe drugs for the treatment of insomnia. All insomnia medications should be taken shortly before bed. Do not attempt to drive or perform other activities that require concentration after taking an insomnia drug because it will make you sleepy. Antidepressants: Some antidepressant drugs, such as (trazodone (Desyrel) and (mirtazapine (Remeron), are particularly effective in treating sleeplessness and anxiety. 2  Over-the-Counter Sleep Aids: Most of these sleeping pills are antihistamines.