Cholesterol is a lipid, or fat, of the body, and it is this along with another lipid called triglyceride that are vital building blocks of a cell. They are also used in the production of hormones as well as producing energy. Cholesterol is mainly produced in the liver, but it can also be ingested with certain foods.

There are two types of cholesterol and just to keep things simple, these can be classed as the good sort (high-density lipoprotein or HDL) and the bad sort (low-density lipoprotein or LDL). The HDL is effective in reducing cholesterol by transporting it back to the liver from where it is eliminated, whereas the LDL can contribute to certain diseases associated with the heart or blood circulation. HDL levels can be raised through exercise and LDL lowered by eating less saturated fat or sometimes with the aid of medication.

Cholesterol levels can be hereditary as well as being influenced by which part of the world the sufferer lives in. Northern Europeans have higher levels than their Southern counterparts, for example, and a much higher level than Asian people.

High Cholesterol

There are no symptoms of having high cholesterol and it is only one factor of many that can contribute to hardening of the arteries. Other factors include smoking, diet, alcohol intake, exercise and body weight. If going on a cholesterol lowering diet doesn’t help to reduce the levels, then medication will be required to assist the process.

Rotavirus infection affects the stomach and intestines in children with symptoms including diarrhea and vomiting. Most cases of the rotavirus infection are mild and usually clear up without medical intervention within a few days but some children, especially toddlers under the age of two, can be at risk of dehydration so it is essential to keep them hydrated with plenty of fluids.

The rotavirus infection is spread by infected people who haven’t washed their hands properly after going to the toilet. This can cause tiny amounts of infected feces being passed on to the child.  Small amounts of these infected feces can also be carried in the air resulting in the child inhaling them. Most children will have contracted the rotavirus infection by the age of five.  The rotavirus infection is more common during the winter and spring and it is usually common for the first virus to be the worst as after that the child will have built up some immunity.  It is for this reason that the rotavirus is rare in adults.

Rotavirus Infection

The rotavirus is extremely contagious in children and can even infect children who have already had the infection due to full immunity not being built up.  It is a good idea to isolate an infected child for a period of at least 48 hours after they have stopped having diarrhea and vomiting.

Symptoms of the rotavirus infection include rapid onset of diarrhea and vomiting and also occasionally a high temperature of 38C or above however it is important to recognize the signs of dehydration as this can occur if not enough fluids are taken.  Signs of dehydration include weakness, rapid breathing, little or no urine, or dry mouth and eyes.

The most important thing to do for a child with the rotavirus infection is to keep them hydrated and the infection will usually pass within a few days.

Kidney stones are described as stone-like lumps which can form in either one, or both kidneys. They are quite common, but to understand what they are, we have to discuss the function of the kidneys.

First of all, the kidneys are approximately four inches long and are shaped like a bean. There are two of them in the body and they are located near the back of the abdomen area, one on each side of the spine. The job of a kidney is to remove waste products from our blood and then pass this waste into the bladder along with excess fluids to be disposed of in the urine.

Kidney stones can be categorized into four main types. Calcium stones which are made up of calcium and phosphate or oxalate; struvite stones which are made of ammonia and magnesium (these ones can often be quite large); uric acid stones (the smallest and softest type of kidney stone); and cystine stones which are normally yellowish in color and look like crystals as opposed to stones. All kidney stones can come in different shapes, colors and sizes – from the size of a grain of sand to (in some extreme cases) the size of a golf ball.

Kidney Stones

Kidney stones are formed when the waste products collected by the kidney do not dissolve properly in the fluid that will make up the urine, which then forms little crystal-like substances that can accumulate in the kidney. Over time these can form a hard lump that looks like a stone – the kidney stone.

When kidney stones are formed, they will very often try to leave the body via the urinary system, which can create problems, especially if they become blocked.