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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.
People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.
Vaccines prevent between 2.5 and 4 million deaths every year.
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
![On some vehicles equipped with an airflow sensor, a switch is used to energize the fuel pump. In ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_11_10_54_299701375.png)
![A schematic showing that an inertia switch is connected in series between the fuel-pump relay and ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_11_10_58_29981478.png)