So Fix it

Shock is a medical condition that often occurs due to some sort of trauma. According to the National Institute of General Medical Sciences, shock, also known as circulatory collapse, sets in when the blood pressure in a persons arteries is too low to supply adequate blood to his organs and tissues. In a state of shock, a persons skin becomes cold and sweaty and his pulse becomes weak. Breathing becomes irregular, the mouth becomes dry and pupils dilate.

Septic Shock

Septic shock results from microorganisms entering the bloodstream. Anything that introduces bacteria into the blood stream can cause septic shock. This condition causes immune chemicals to be released into your bloodstream to fight the infection and triggers widespread inflammation, leading to blood clots and leaky vessels, according to a description of the condition by National Institute of General Medical Sciences. The condition deprives the body of blood flow and damages the bodys organs. An extreme form of this reaction results in septic shock and could cause death. People with chronic illnesses such as diabetes and kidney or liver disease face a higher than average risk of septic shock.(see erence 1)

Anaphylactic Shock

Anaphylactic shock is caused by a severe allergy reaction. This results from an anaphylaxis reaction that could set in within minutes or seconds of your exposure to something you are allergic to, such as milk or peanuts, as MayoClinic.com explains. A flood of chemicals is released by your immune system during an anaphylaxis reaction. This could cause you to go into shock as your blood pressure drops and your airways become too narrow to allow normal breathing. (see erence 2)

Cardiogenic Shock

When the heart is too weak to pump enough blood to meet the needs of the body, the result could be a cardiogenic shock. Damage to the heart muscle from a severe heart attack is the most common form of cardiogenic shock, according to the National Heart Lung and Blood Institute. Not everyone who has a heart attack goes into cardiogenic shock as a result though. Only about seven percent of people who experience heart attack go into cardiogenic shock. (see erence 3)

Automobile headlights have gotten progressively smaller, brighter, and more focused on the road. In early cars headlights were mounted in big, hulking, self-contained units to the front of the grille. As vehicles got more sophisticated headlights were integrated into the body, though they remained self-contained units. In modern vehicles the headlamp is usually a shell which houses replaceable light bulbs.

The First Headlamps

The earliest cars used gas or oil and acetylene-powered headlights mounted to the hood, which were about as big as a basketball and externally powered. Drivers had to get out of the car to turn them on. They had to be frequently repaired or replaced, especially if operated in rainy weather. Electric headlamps finally came into use in 1912. They were still bulky and externally powered, but held up better in inclement weather.

Electric Headlights

As electric headlamps became powered by the cars electrical system, they got smaller and more frequently integrated into the body of the car. They were about the size of a grapefruit or smaller. Mounted at the far, outside corners of the hood, the brighter, smaller electric lights could be focused lower to provide a wide sweep of the road ahead while creating less glare in the eyes of on-coming drivers.

Halogen Headlights

Halogen headlights came of age in the mid-60s. Using a tungsten filament they produce a much brighter light than the older electric lights and last much longer. Because of the improved brightness, they allowed an explosion in headlight shapes and sizes. In the 70s and 80s rectangular-shaped headlights about the size of a checkbook were popular. They were made possible by the superior brightness of halogen lights. They remained self-contained units that plugged into the headlight frame on the car.

High Intensity Discharge

Halogen lamps remain the most common form of car headlight. In modern cars, though, the lamp casing is part of the car. Only the bulbs are replaced. Most manufacturers also offer high-intensity discharge, or HID bulbs. HID lamps use no filament at all. They use an inert gas, usually xenon, that glows brilliantly when a high-voltage arc is present. These lamps can produce twice the brightness of halogen, use less energy, and can appear in different colors. The bluish-white headlights on some high-end cars is produced through HID lamps. Some manufacturers now make bluish halogen bulbs to imitate HIDs, but the halogens do not produce as bright or clear a light.