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प्रश्न
How does stress affect the immune system?
उत्तर
Stress can cause illness by impairing the workings of the immune system. The immune system guards the body against attackers, both from within and outside. Psychoneuroimmunology focuses on the links between the mind, the brain and the immune system. It studies the effects of stress on the immune system. How does the immune system work? The white blood cells (leucocytes) within the immune system identify and destroy foreign bodies (antigens) such as viruses. It also leads to the production of antibodies. There are several kinds of white blood cells or leucocytes within the immune system, including T cells, B cells and natural killer cells. T cells destroy invaders, and T-helper cells increase immunological activity. It is these T-helper cells that are attacked by the Human Immuno Deficiency Virus (HIV), the virus causing Acquired Immuno Deficiency Syndrome (AIDS). B cells produce antibodies. Natural killer cells are involved in the fight against both viruses and tumours.
Stress can affect natural killer cell cytotoxicity, which is of major importance in the defence against various infections and cancer. Reduced levels of natural killer cell cytotoxicity have been found in people who are highly stressed, including students facing important examinations, bereaved persons, and those who are severely depressed. Studies reveal that immune functioning is better in individuals receiving social support. Also, changes in the immune system will have more effect on health among those whose immune systems are already weakened.
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संबंधित प्रश्न
We know that certain lifestyle factors can cause stress and may lead to diseases like cancer and coronary heart disease, yet we are unable to change our behaviour. Explain why?
As per the General Adaptation Syndrome, the individual is ready for fight or flight in the _____________ stage.
The study that focuses on the link between the brain, mind and immune system is called _______.
The following is/are true about stress and the immune system:
- Stress can cause illness by impairing the workings of the immune system.
- The immune system functions to guard the body against attackers, both from within and outside.
- Increased levels of natural killer cell cytotoxicity have been found in people who are highly stressed.
- Studies reveal that immune functioning is better in individuals who do not receive social support.
Choose the correct option:
GAS involves three stages: alarm reaction, resistance, and ____________.
According to Piaget the process of building mental representation of the world through direct interaction with it is:
Which of the following is the final destination for much of the brain's information about emotion before action is taken?
The process by which the eyes get prepared to see very dimlight is known as:
The stress process propounded by Lazarus is based on the ______ theory of stress.
The standard of education can be raised by−
In co-education you want to:
Success in developing values is mainly dependent upon:
Four distinct stages of children's intellectual development were identified by-
Which is the place where the child's cognitive development is defined in the best way?
The general adaptation syndrome consists of three stages which include
Who among the following gave Cognitive Theory of Stress?
Which type of reaction are virtually limited and depending on the nature of the stressful event?
Which among the following is not a part of psychological stress?
According to experts who deals with post traumatic stress disorder, one of the key attitudes to develop in the survivors is that of ______.
The information presented first has a stronger effect than the information presented at the end is called ______.
An emotional state that arises when a person is prevented from reaching a goal or attaining an object that s/he wants
______ helps to alleviate stress due to diseases through modification in behaviour.
The state of physical, emotional and psychological exhaustion is known as
The stresses which people experience vary in terms of intensity, duration, complexity and
Meena's work environment is highly stressful due to unrealistic expectations by the organisation. She had been trying to balance her job as well as her home front. Since the last few months, she was not feeling well. So, she went for a check-up and was diagnosed with high blood pressure. According to General Adaptation Syndrome, at what stage does this happen?
Describe Selye's General Adaptation Syndrome.
