How Stress/Fear Affects Our Immune System || Indian Homeo- Dr. Sudha Tripathi

#Dr. Sudha Tripathi 2021-11-23



As we know prevention is better than cure it is always advisable to enhance the body's natural defence system that is immunity. Immune system of our body plays an important role in maintaining optimum health.

Before we proceed to understand how stress or fear affects our immune system let's understand what immunity is.

Immunity is a balance date of a body having adequate biological defence to find infections, diseases or other unwanted biological invasions. So basically it is a balanced state where there is the ability to recognise and tolerate whatever belongs to self and to reject what is foreign.

Normally we don't make any conscious effort in breathing, digesting our food or making our heartbeat. All these functions are taken care of by the autonomic nervous system; this is the balance state where all the body systems work harmoniously.

To understand how stress or fear affects the immune system let's see what stress is. Stress is the body's normal defence mechanism to protect from any kind of threat or fear.

There are two scenarios when we sense danger-

  1. Real danger or

  2. Imagined danger

Real danger means, there is an actual life and death scenario, for example if a person has been chased by a wild animal, in this scenario the fight and flight mechanism is activated which is a good thing. In this fight or flight  response the stress hormone that is corticosteroid is released.

Once we escape from threat, the immune system takes charge and the body is back to normal function.

So to protect from the real danger or something very terrifying the body activates the fight and flight response.

In this mechanism there is release of  the stress hormone which suppresses the immune system thus increasing the blood pressure and blood sugar, hormone adrenaline is released and helps the body to react more quickly by making the heart beat faster increasing the blood flow to brain and muscle and stimulates the liver to release glucose for muscle .

After the threat is gone it takes between 20 to 60 minutes for the body to return to its normal state.


Why is the fight or flight response important?


The fight or flight response plays a critical role in how we deal with stress and danger in our environment, that means it  prepares the body for action, when we have  to perform under pressure, like pressure to perform better in exams or where they work.

Whereas in imagined danger when there is no actual life or death scenario, here we are afraid of things which would not actually kill but our imagination and perception makes us feel like they will kill.

Our Nervous system is not very good in distinguishing between the emotional and the physical threat. If we are super stressed over an argument with a friend or at work, our body reacts as strongly as if we are facing a true life or death situation. Then the emergency stress response system that is fight and flight response is activated and we start feeling angry, blaming, low feeling, depressed, aggressive, irritated, anxious and overwhelmed.

So if you're going to get stressed frequently where there is no actual threat, in this scenario the more the emergency system is activated which suppresses the immune system. This in turn upsets the digestive system, reproductive system and increases the risk of heart attack and speeds up the aging process. More stressed the person is the body starts to lose the power of its control. If we are not taking care of our immune system due to our constant stress they are open to infections.

Homoeopathy Approach to Stress


Constant Stress causes

  • Anger

  • Blaming

  • Low feeling

  • Aggression

  • Irritable and anxious

  • Suppressed Immune System



  • In Homoeopathy health is considered as mental, physical and emotional well being.

  • Homeopathy treats the man who is diseased but not the disease in man. 

  • This means that homoeopathy medicines are prescribed on totality of symptoms.

  • Physical complaints, Thermals, Sensitivity

  • Mental symptoms- behaviour, hobbies, nature, like dislikes.

  • Thus homoeopathy medicines act by stimulating the body's immune system and giving relief from symptoms. 

Few Homoeopathic medicines (please do not take any medicine without consulting your doctor)


KALI PHOS – Indicated when there is

  • Dullness
  • Mental fatigue
  • Irritability
  • Restlessness
  • Mental Breakdown Brain fag and Nervousness due to mental exertion 


Arsenic Album-

  • Anxious
  • Highly Sensitive
  • Anguish
  • Too much of anxiety about health
  • Fastidious
  • Restless
  • Obsessed with order and tidiness
  • Seeks Security


 Argentum Nitricum-

  • Diarrhoea due to APPREHENSION
  • Fear to be late
  • Impulsive 



  • Weakness and avoid Responsibilities
  • Develop Inferiority
  • Shy, introverted and loner
  • Low self esteem fear of appearing in public
  • Anxiety about health and career
  • Irritable 
  • Easily angered
  • Cannot tolerate Contradiction 


Homoeopathy Medicines cure by stimulating patient’s immune system.