Sometimes, dyspepsia is a more sudden, noticeable (acute) sensation. Depending on the cause of the dyspepsia, people may have other symptoms such as a poor appetite, nausea, constipation, diarrhea, flatulence, and belching. For some people, eating makes symptoms worse. For others, eating relieves symptoms.
An X-ray machine is essentially a camera. Instead of visible light, however, it uses X-rays to expose the film. X-rays are like light in that they are electromagnetic waves, but they are more energetic so they can penetrate many materials to varying degrees.
To produce an X-ray picture, an X-ray machine produces a very concentrated beam of electrons onto a metal film. The beam travels through the air until it comes in contact with our body tissues. Soft tissue, such as skin and organs, cannot absorb the high-energy rays, and the beam passes through them.