How long do people live for?

People are living longer and longer, and most of us can expect to live to the age of 75 years or more. We can also expect to be reasonably healthy for almost all of this time. Because...

Why do people grow old?

Ageing is a result of the gradual failure of the body's cells and organs to replace or repair themselves.This is because there is a limit to the number of times that each cell can divide....

What is an antibiotic?

Antibiotics kill bacteria by interfering with the way in which bacteria reproduce. Antibiotics are produced naturally by many simple plants and even other bacteria. Antibiotics are...

How do medical drugs work?

Many medical drugs work by correcting the chemical reactions within the body that are responsible for disease. For example, insulin injections replace insulin that is not being produced...

Alternative medicine

Modern medicine is based on the scientific study of diseases and drugs to treat them. Alternative medicine is based on different theories that are not provable scientifically, but which...

What is health?

Being healthy involves far more than simply not being ill. If you feel in good health, your organs will be working properly and you will have the energy to live life to the full. This...

Why does relaxing help you to remember?

When you struggle to remember something this often seems to make it even harder to recall. When you relax, your brain tends to explore alternative routes to find the lost piece of information...

Can a smell bring back a memory?

The sense of smell has powerful effects in retrieving memories. Often a smell can suddenly trigger a memory from many years ago. Sounds and tastes do not seem to work in the same way. Special...

Can the brain alter to help people to learn?

The structure of the brain can alter slightly as you learn new memories and activities. The number of connections between neurones can increase as you learn a repetitive task, making...

How do I remember things?

Memory is the ability to store things that you experience and learn, ready for future use. Some things are remembered easily, such as a dramatic event in our life. However, more ordinary...

What job does the brain do?

The brain is the body's control centre. it coordinates all the messages that pass through the nervous system, giving us the ability to learn, reason and feel. It also controls the body's...

What are dominant genes?

Although genes from both parents are mixed together at fertilization, some genes have a more powerful effect than others. These dominant genes override the effects of others which are...

What is a mutation?

Mutations are changes in the DNA inside a cell that affect the genes and chromosomes. Mutations arise because of errors in the DNA molecule when it divides and re-forms in the new cells....

What are X and Y chromosomes?

The 23rd pair of genes determines the sex of a baby. These are X and Y chromosomes. A woman has two X chromosomes, while a man has one X and one Y chromosome. When the chromosomes join...

How do I inherit genes from my parents?

Sperm and egg cells contain only half of the normal number of chromosomes. During fertilization these chromosomes combine to make up the usual total of 46 chromosomes. This means that...

How is a baby born?

The mother starts to feel strong tightening pains, called contractions, in her womb when the birth is near. These contractions become stronger, and the neck of the cervix starts to...

Which hormone affects growth?

Growth hormone, one of the most powerful hormones in the body, is produced in the pituitary gland. Growth hormone causes growth throughout childhood and adolescence, and it also affects...

What happens when I am frightened?

When you are frightened, hormones help to prepare you to fight or to run away. This is a primitive reaction that all human beings still have, and it can affect our day-to-day behaviour....

What is diabetes?

Diabetes is an illness that is caused when the body does not produce enough insulin.The result is that large amounts of glucose build up in the blood and the person has to urinate frequently...

What are bacteria and viruses?

Bacteria and viruses are the most important causes of disease. Bacteria are simple plants like organisms that can divide very quickly. They cause many common infections such as boils...

Men's Sexual Health - Male Hormones, Male Menopause, Orgasm and Healthy Penis

There are varied aspects that impress men's sexual health. Antheral hormones and their use is an integral construct of manly intersexual successfulness.. There is one ever development...

Do you drink alcohol?

by Cristina Nuta - Alcohol has been a very dangerous vice since the mankind. People drink alcohol from different reasons, but the first and most important one is that alcohol is...

Treatment of Male Yeast Infection

Male yeast infection is caused by the fungus known as Candida. Candida happens due to various reasons but the most common amongst those is the sexual transmission from the female suffering...

What could be done to improve the lives of the elderly?

by Cristina Nuta - For many elderly people the latter part of their lives is not a time to relax and enjoy retirement, but rather a difficult and unhappy period, owing to financial...