INFECTIOUS AND NON-INFECTIOUS DISEASES

INFECTION

STAGES OF DISEASE

CONVALESCENCE

SYMPTOMS

infection - symptoms - convalescence

Germs enter the body and reproduce. We do not have symptoms, but our defence system is activated.

We begin to feel the symptoms and signs of the disease.

Our immune system eliminates the germs and we recover.

ACCIDENTS

ALLERGIES

CELL MUTATION

AGEING

MENTAL HEALTH

DIET

Some disorders, such as depression, can affect our thoughts, behaviour and emotions

A problem with the immune system means we cannot tolerate certain substances.

When cells reproduce incontrollably, they can cause diseases like cancer. Cancer is cell mutation.

A poor diet, or eating too much or too little food, can cause malnutrition. It includes undernutrition, overweight and obesity.

They can cause burns, wounds, cuts, broken bones, poisoning, etc.

Cells, tissues and organs age. This can cause dementia or diseases of the joints.