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A blood blister is an unsightly red blister that can form anywhere on the skin. Unlike a regular blister, a blood blister appears red because it is filled with blood, lymph and other fluids trapped beneath the skin. Blood blisters are usually painful, but will usually heal in a week or two with the proper treatment. If you have ever wondered what causes these irritating blisters, keep reading to find out.
Lyme disease is an infectious disease caused by 3 separate bacteria from the Borrelia family. The name of the disease come from the town of Lyme, Connecticut, where many cases broke out in 1975. In 1978 Harvard professor Allen Steere discovered that the disease was transferred to humans from ticks, but it wasn’t until 1981 when Willy Burgdorfer identified the bacteria involved. Symptoms of the disease are reported to be fever, fatigue, headache, circular skin rash and depression. If it isn’t treated promptly it can cause problems with the joints, nervous system and heart. In very rare cases the disease can cause death. The disease can also cause long term effects, known as chronic Lyme disease, even in people who are treated. Let’s take a look at the treatment for this disease.
Color blindness is a genetic visual deficiency that limits or decreases the ability to see color. There are three main types of color blindness called; monochromacy (total color blindness), dichromacy (one color mechanism is missing or not working) and trichromacy (a less severe impairment in perceiving colors). The symptoms of color blindness can also be caused by damage to the eye or brain, but this is not classified as true color blindness. Let’s take a look at what causes this problem.
Malaria is a disease, spread by mosquitoes, caused by a parasitic infection of the red blood cells by a 5 different protozoa from the plasmodium family. As the infection replicates and spreads the disease causes fever, shivering, joint pain, anemia, convulsions and headache. In severe cases the disease can cause a coma or death. The disease is found in many parts of Asia, Central and South America, and most of Africa. It is estimated to affect over 250 million people each year and cause 1 million deaths. Let’s take a look at how this potentially fatal disease is treated.
Hardened arteries, also known as atherosclerosis or clogged arteries, is a dangerous condition where the wall of the artery thickens. This is a problem because it can go undetected for years and the first symptom for many sufferers is a heart attack or cardiac death. It is also quite difficult to detect until there is significant clogging. Let’s take a look at what causes clogged arteries.
Cocaine is a white crystal-like substance extracted from the leaves of the coca plant native to South America. It is sometimes used in medicine as a local aesthetic, but is most well known for its use as an illicit drug. Cocaine produces feelings of euphoria and has a stimulating effect on the body. However, frequent cocaine use can create a dependency problem. This means that the production, sale and use of cocaine is restricted ,and in most countries it is illegal. It is estimated that over 600 tonnes of cocaine are seized by authorities around the world each year. Let’s take a look at the effect cocaine has on the brain.
Human immunodeficiency virus, better known as simply HIV, is a virus that causes acquired immunodeficiency syndrome (AIDS). AIDS is a serious condition that leads to a failure of the immune system. It was discovered in 1981 and since this time HIV infections have spread to pandemic proportions. It is estimated to affect about 0.6% of the entire population of Earth and causes about 2 million deaths per year. There is no cure for HIV, but the most widely used treatment is antiretroviral drugs which increases the life expectancy of people suffering from this disease. Continue reading to find out how HIV is transmitted between people.
Vitamin D is a group of 5 fat soluble vitamins, with D2 D3 the most common forms. Vitamin D is truly unique because it can be synthesized in the body with adequate exposure to the sun. It is also obtained from foods such as fatty fish, egg and liver. However, many staple foods, such as bread and cereal, are now fortified with additional vitamin d. Let’s take a look at why this vitamin is so important for our health.
The common cold is a highly contagious infection that can be caused by several different viruses. It causes symptoms such as; a sore throat, cough, congestion, runny nose, muscles aches and a mild fever. There is no cure for the common cold, but the symptoms usually pass within 7-10 days. However, it is not uncommon for some of the symptoms, especially the cough, to last for 3 weeks. The cold is the most frequent viral infection in humans. It is estimated that an adult with catch a cold two to four times a year and a child may have 6 and 12 colds a year. Read on to find out how this infection in transmitted and how to avoid it!
Sleeping is a natural state where the body is unconscious. It causes a decrease in body movement and a decrease in the ability to respond to a stimulus. Sleep allows for the body to recuperate and for the growth and repair of the various body systems. The circadian clock is an internal time keeper that controls sleep in humans and it is responsible for the regulation and release of hormones that promote sleeping and being awake. We all know that sleep is important, but it can be hard to know just how much we should be having. Let’s take a look at how much sleep an average adult needs and why it is so important to get it!