Simplify the following text for a Grade 9 native English-speaking person.
Original: The Nobel Prize in Physiology or Medicine administered by the Nobel Foundation , is awarded once a year for outstanding contributions in the medical field . It is one of five Nobel Prizes established in 1895 by Swedish chemist Alfred Nobel , the inventor of dynamite , in his will , the others being for contributions in Physics , Chemistry , Literature and Peace .
Simplified: The Nobel Prize in Physiology or Medicine is one of many Nobel Prizes which were created by Alfred Nobel .