Thursday, 10 March 2016

#119 Effect of Alcohol on the blood vessels and the brain (English)

Effect of Alcohol on the blood vessels and the brain

The walls of the blood vessels consist of three layers and alcohol affect the size of the blood vessels. The three layers are tunica intima, tunica media and tunica externa. The tunica media controls vasoconstriction and vasodilation of the blood vessel.

Large amounts of alcohol can affect the circulatory system and the function of the heart. Drinking excessively can affect other organs because if the heart isn't functioning correctly then organs can suffer from lack of nutrients and oxygen. Furthermore, drinking can lead to block blood vessels which could have serious implications such as coronary heart disease.

There is a physical distinction that can be seen on the faces of drinkers due to drinking, blood vessels begin to shrink leading to vasoconstriction and increasing blood pressure.

What is Vasoconstriction?

Vasoconstriction is the narrowing of the blood vessels resulting from the contraction of the muscular wall of the vessels. When the blood vessels constrict, the flow of blood is restricted and therefore blood pressure increases.

   Alcohol's damaging effects on the brain

A number of factors influence how and to what extent alcohol affects the brain however overall alcohol can cause memory impairments and the more a person drinks the more the degree of impairment. Consuming large amounts of alcohol over a period of time such as starting drinking from age 16 and onwards can impair the brain. The problem with drinking from a young age is that during those ages the brain is developing and therefore it could cause functional changed to different brain regions.

The brain damage related to ethanol os not only due to high drinking levels but also alcohol withdrawal, nutritional deficiency and liver damage also contributes to alcohol related damage. The long term use of alcohol is capable of damaging every organ in the body therefore impacting not only the central nervous system but the peripheral nervous system. Alcohol affects brain by changing the levels of neurotransmitters which are chemical messengers that transmit the signals throughout the body that control thought processes, behavior and emotion.

Ethanol can cause an inflammation in the nervous tissue which may lead to neurodegenerative diseases therefore it is important to regulate the amount of alcohol intake of a person as it can lead to severe chronic diseases.

HIB

1 comment:

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