|
|
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.