How long should I keep tax returns? In most cases, you should plan on keeping tax returns along with any supporting documents for a period of at least three years following the date you filed or the due date of your tax return, whichever is later.
Myoclonus. These are shock-like, jerking movements. They may occur naturally during sleep, or at moments when a person is startled. However, they can also be due to serious underlying health conditions, such as epilepsy or Alzheimerâs.
This body movement, also known as a sleep start, is what doctors and scientists call a hypnic (say: HIP-nik) or myoclonic (say: my-uh-KLAH-nik) jerk. These jerks usually occur before you enter the deeper stages of sleep and are completely normal.