Why We Vomit. In many cases, throwing up is a protective reflex to rid your body of viruses, bacteria, or parasites in your digestive system. âIf you were to eat something that was spoiled or poisoned, your body would get a signal that something was wrong,â says Bruno Chumpitazi, MD, of Texas Childrenâs Hospital.
Parafilm is ideal for the scientific laboratory because it is a thermoplastic, self-sealing film. It holds moisture loss to a minimum. It offers excellent protection for the contents of tubes, flasks, and petri dishes.
BananaStock/BananaStock/Getty Images. People over the age of 40 sometimes develop farsightedness, or presbyopia. Monovision is a treatment where the contact lens in the non-dominant eye is set for reading while the lens in the dominant eye is used for perceiving objects at a distance.hen both distance and near vision correction are needed, people who wear contact lenses have three options: multifocal contacts that change power from the bottom to the top of the lenses; reading glasses placed over lenses; and, the Monovision system. Other People Are Reading.