There are two factors which contribute to and can have an affect on human health (Internal
and external) which will be discussed.
, 1) Internal Factors
• An internal factor is something that can cause harm or disease, Haemophilia
which is found within the human body itself (Matsuoka 2016). People are born with haemophilia. It canno
Hereditary Diseases from someone like a cold. Haemophilia is u
inherited, meaning that it is passed on throu
Sickle Cell Disease genes (WFH).
• It is caused by a gene that affects how red blood cells develop. Haemophilia is a bleeding disorder where th
Children have a 1 in 4 chance of being born with sickle cell does not clot properly. This can lead to spon
disease if both parents are carriers of the gene, but not actually bleeding as well as bleeding following injur
have the condition themselves (NHS 2019). surgery. Blood contains many proteins calle
• The condition targets the organs of the sufferer, the red blood factors that can help to stop bleeding, howe
cells become sickle shaped due to the presence of defective individuals with this condition have a muta
haemoglobin (GHR 2019). their genes which does not produce what th
• Sickle cells block blood flow through the blood vessels and order for the blood to clot (CDC).
deprive the affected organs from blood and oxygen. In sickle
cell anaemia, blood is low on oxygen, the chronic deprivation
of oxygen-rich blood can damage nerves and organs in the
body, including kidneys, liver and spleen (MayoClinic 2019).
The patients have an increased risk of developing infections as
their immune system is weaker than an average person without
the condition (EMH).
, Internal Factors Overproduction Of Growth Hormone
• When growth hormones over produce they
Hormonal Diseases cause excessive growth. In children the
condition is called gigantism and in adults
Diabetes
acromegaly (Chapman, 2019).
• Diabetes occurs when your blood glucose is too
high. The glucose within your blood is your main • The condition is almost always due to a non
source of energy and comes from the food that you cancerous pituitary tumour growth. It affects th
eat. Insulin is the hormone made by the pancreas,
young bodies with a larger than normal stature
it helps the glucose from food get into cells to be
used for energy. Diabetes occurs when the immune and with adults they develop deformed bones
system starts destroying the cells within the without the growth (Chapman, 2019). Facial
pancreas that make the insulin, causing the body to features can become enlarged as well as hands
have not enough insulin t function. and feet.
• The common problems that patients suffer fro
• This can cause complications within blood vessels
all over the body. It can severely damage eyes, are heart failure (due to the heart growing to a
kidneys, nerves and also double the risk of heart larger than normal size), weakness, vision
attack and stroke. problems.
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