Food allergy is actually an abnormal response triggered by the immune system to food as if it is threatening. Food intolerance looks similar to food allergies. However, the difference lies in how each one of them affects an individual. Food allergy is extremely intrinsic and to an extent, affects the internal organs. 

On the other hand, food intolerance is less severe, mostly just affects the digestive system due to the inability to digest that particular food properly, leading to an upset stomach. Most of the people suffer from food intolerance only, but they confuse it with food allergy.

About ninety percent of all cases of food allergy are related to only eight types of food as per research statistics. These are milk, tree nuts, egg, peanut, soy, wheat, shellfish, and fish.

The Reaction:\

In order to understand how symptoms manifest, it is of utmost importance, in this case, to understand how an allergic reaction to food occurs. An allergic reaction is a bi-step process as discussed further.

Step1: On exposure to the food allergen for the first time, the body reacts abnormally and produces IgE antibodies against the perceived allergen. These circulate throughout the entire body with blood and attach themselves to basophils (found in blood) and mast cells (found in sites like the nose, lungs, throat, gastrointestinal tract, skin, etc.).

Step 2: The next time the body is exposed to a particular food allergen, it gets alert and alarms the tissue that releases histamine in large quantity. Depending on the site of release, allergy symptoms are caused, ranging from mild to severe to potentially life-threatening (for example, in anaphylaxis).

The time span for an allergic reaction manifesting into symptoms can vary between a few minutes to several hours post exposure to the food allergen. The site of mast cells for release of histamine greatly affects the location and timing of the reaction.

Who is at Higher Risk?

If a person has a family history of developing a food allergy, it creates even greater chances for him/ her to have the same or similar reactions. If both the parents have some kind of allergic reaction to food, it is very likely that the child would have that too.

Symptoms:

Symptoms of food allergies largely depend on the sites of mast cells that release histamines. It is possible that these sites are located in nose, ears, or throat leading to itching in mouth, having a trouble in swallowing and breathing, and swelling of lips and tongue. If the location is in the gastrointestinal tract, it may lead to vomiting, diarrhoea, and abdominal pain. If it is in the skin, it might lead to hives, itching, decolourization, pigmentation, worsened eczema, etc.

Cross Reactivity:

If a person has an allergy to a particular food, it is advisable to abstain from similar types of food. For example, if somebody is allergic to crab, he/ she should abstain from shrimp, crayfish, lobster, etc. too as they might also trigger the reaction. This is called cross reactivity.

Treatment:

It is always advisable to abstain from foods which cause an allergic reaction in an individual. However, in case it has already occurred, there are two major types of medication which help in relieving the symptoms. Antihistamines are used for treating mild to chronic reaction, whereas adrenalines are used for severe reaction like in anaphylaxis.

Take Away:

Food allergy is usually a condition for life and cannot be permanently treated. However, symptoms can be relieved. Therefore, it is advisable to avoid the allergy, causing group of food.

Food Allergy - Everything About It!

World Immunization Week is a global public health campaign to raise awareness and increase rates of immunization against vaccine-preventable diseases around the world. It takes place each year during the last week of April. Immunization can protect against 25 different infectious agents or diseases, from infancy to old age, including diphtheria, measles, pertussis, polio and tetanus. The World Health Organization (WHO) estimates active immunization currently averts 2 to 3 million deaths every year. The goal of World Immunization Week is to raise public awareness of how immunization saves lives, and support people everywhere to get the vaccinations needed against deadly diseases for themselves and their children.

The immune system of the body essentially plays two important roles. Firstly, it protects the body from bacteria, viruses and other foreign organisms, thus preventing the onset of infections and diseases. Secondly, it ensures that body cells are functioning properly and are not degenerating. Thus, the immune system of the body is quite effective and is responsible for your overall health.

There are times when the immune system becomes weak and is thus unable to fight foreign organisms invading the body. A direct indication that your immune system is weak is when you catch a seasonal cold or flu. In such a case, you have to take certain steps to give a boost to your immune system, such as-

Live healthily- Living healthy does not only include eating a balanced diet and exercising regularly. Make sure that you get enough sleep on a daily basis and avoid smoking along with consumption of alcohol. It is also essential that you maintain your weight and keep a tab on your blood pressure.

Maintain good hygiene- Hygienic habits such as washing hands before every meal and after using the toilet go a long way when it comes to boosting the immune system.

Reduce sugar intake- As per research, it becomes more difficult for white blood cells to fight bacteria when the sugar level of the body is very high, which is why the immune system gets surpassed, and you are more susceptible to infections.

Consume healthy fats- Omega-3 and Omega-6 fatty acids play an important role in boosting the immune system. These healthy fats help the immune system to make prostaglandins, which effectively destroy germs and viruses that have invaded the body.

Avoid the consumption of toxic food- As far as possible, make sure that you are consuming organic food. This is because food grown on a commercial scale is full of toxic chemicals from the pesticides, insecticides, preservatives and artificial colours added to it. The toxic chemicals have a grave impact on the immune system of the body, which can lead to severe complications in the long run.

Although, you want your immune system to be strong and effective, make sure that it is not highly overactive. A highly overactive immune system can also lead to many health complications, such as the onset of autoimmune conditions. All in all, make sure that you are leading a healthy and balanced lifestyle.

World Immunization Week - Boost Your Immune System!

Upper respiratory infection (URI) is a condition, which involves illness, mainly caused by critical infection in the upper respiratory tract. This region includes the pharynx, larynx, nose and sinus. This infection causes diseases, such as tonsillitis (tonsils get inflamed), pharyngitis (causes sore throat) sinusitis (nasal passage becomes inflamed), laryngitis (voice box in your throat gets inflamed) and common cold.

Causes of upper respiratory infection (URI):
1. Both virus and bacteria cause upper respiratory infection (URI). The most common form of virus causing this infection is known as 'rhinovirus.'

2. The immune system of young adults and children are often very vulnerable. Hence, they are more likely to develop upper respiratory tract infection.

3. URI is also contagious and airborne in nature. So if a person comes in contact with an infected person suffering from URI, he/she is likely to develop this infection.

4. Not washing hands before meals can also cause upper respiratory infection because the virus can be transferred easily to the mouth and can travel into your system.

5. If you have any lung problem or heart disease, you are more likely to be susceptible to upper respiratory infection.

6. Those who already have inflamed tonsils can trigger tonsillitis by drinking any cold or spicy beverage like ice-creams or cold milkshakes.

7. Exposure to some flu or cold can cause pharyngitis. It can also be caused by second hand smoking.

8. Birth defects or structural defects in the nasal cavity or nasal polyps can cause sinusitis. Sometimes the inside part of the nose may get swollen due to common cold and block your ducts. This is a common cause for sinusitis.

Symptoms of acute upper respiratory infection:
1. Congestion in the lungs or nasal area.
2. Whooping cough
3. Running nose due to common cold.
4. Feelings of fatigue and lethargy throughout the day.
5. Your body will start aching without engaging in any physical exercise.
6. You can also lose consciousness in severe respiratory tract infections.
7. Difficulty in breathing.
8. Oxygen levels in blood drop down drastically.

Sometimes in worse cases, acute upper respiratory tract infection (URI) can also cause respiratory failure, respiratory arrest and congestive heart failure. Therefore, it is necessary to book an appointment with a doctor as soon as you start experiencing the above symptoms.

Acute Upper Respiratory Infection: Causes and Symptoms

Allergic rhinitis is characterized by symptoms of a runny nose, congestion, itchy eyes and sneezing. This disorder is usually caused by allergens such as pollen and dust. Commonly known as hay fever, allergic rhinitis may exhibit the following symptoms:

The symptoms of allergic rhinitis are:
1. You may experience a runny nose and congestion in the nose
2. You may have allergic conjunctivitis where your eyes turn itchy and watery
3. Persistent coughing
4. Symptoms of sneezing
5. Swelling may develop underneath the eyes
6. You may have an itchy nose
7. Constant signs of fatigue

Causes
Allergic rhinitis or hay fever causes the immune system to recognize certain airborne substances as harmful. The immune system in the body starts to form antibodies to combat these irritants. The antibodies cause the body to release  histamine , a chemical that triggers the symptoms of allergic rhinitis.

The various triggers that may cause allergic rhinitis are:
1. Dust mites
2. Tree pollen
3. Grass pollen
4. Spoors from outdoor and indoor fungi
5. Ragweed pollen

The treatment for this disorder is to avoid exposure to the triggers. Mild symptoms of this disorder may be treated with over-the-counter medications whereas severe symptoms may require prescription medications.
The various medications for allergic rhinitis are:

Antihistamines: Antihistamines may be administered as pills or nasal sprays; these medications can help with itching and sneezing. Antihistamines help in limiting the effects of histamine in the body.
Nasal corticosteroids: These prescription medications can help treat itching and inflammation in the nose. They are usually the first medications that are administered.
Decongestants: Decongestants are over-the-counter medications that can be used to treat congestion in the nose. You should be careful not to overuse these medicines as they can increase blood pressure.
Allergy shots: If medications do not relieve symptoms of allergic rhinitis, the doctor may prescribe allergy shots to treat the disorder. The injections contain allergens in small amounts which are injected over a period of time; this causes the body to get used to these allergens, resulting in a reduction of the symptoms.

Allergic Rhinitis - 7 Signs You Are Suffering from it!

The festival of Diwali is greeted with great pomp and splendour and along with the regular festivities, the pollution levels in the air also rise due to the ritual of bursting fire crackers. In an analysis, the rise of harmful pollutants such as sulphur dioxide and nitrogen dioxide seemed to reveal a disturbing outcome.

The rise in pollution during Diwali affects you in the following ways:

The PM (particulate matter which is smaller than 2.5mm) enters your lungs and bloodstream and has several health impacts including chronic respiratory symptoms such as painful breathing and shortness of breath which might cause premature death.
High sulphur dioxide levels in the air during Diwali also lead to inflammation of air passages and causes complications in respiration.
A compound called  strontium  found in the atmosphere multiplies by 120 times during the festival and causes bone damage and blood clotting ailments.
Firecrackers contain heavy metals which are toxic to the human body and the amount of magnesium in the air goes up by 22x, which poses a significant threat to all forms of life.
The noise pollution also rises during the festival and in extreme cases, can permanently damage one s hearing.
However, there are a few measures you can undertake to steer clear of the excessive pollutants present in the air:

Limit the amount of time you spend outdoors even while exercising. This is because the air remains contaminated, days after all the festivities get over and the pollutants take a very long time to dissipate.
Even on the road, drive with the windows of your car rolled up to avoid intake of adulterated air and use a face mask if you are a two-wheeler rider.
Plant a lot of green plants inside your house as they purify the air you are breathing and ensure a supply of fresh oxygen.
Install an air purifier in the room to make sure you breathe in fresh, uncontaminated oxygen when you sleep. The air purifier will also help in lessening your respiratory complications.
Also, in case you notice any respiratory or breathing problem, it is advisable that you consult a pulmonologist, to rule out serious health issues. 

Diwali - How the Rise in Pollution Level Affects Your Health?

As indicated by Ayurveda, good digestion, solid  agni  (the metabolic flame), quality functioning of the liver and an adjusted endocrine framework result in strong immunity. Immunity of the human body is said to be associated to an entity called  ojas  which is believed to be the subtle and positive essence of  kapha  an aspect which provides the body with vigour, strength, immunity and vitality. The general notion is that stronger the Agni, healthier the  ojas , although other factors play a major role too. Therefore, it becomes important to protect your  ojas . Protection of 'ojas' is possible when you are able to live in the present with pure and complete awareness. A number of ways to promote  ojas  and thereby, develop your immunity are listed below:

Diet: Agni is bolstered by a dietary routine that minimizes refined sugars, stimulants and processed foods. The focus must be shifted to consumption of whole and healthy foods while maintaining a proper schedule. Inclusion of garlic, ginger, black pepper, long pepper, cinnamon, asafoetida in the diet is advised as it destroys poisons and bad bacteria, kindles Agni, promotes normal body temperature maintenance and eliminates the extra kapha.
Get adequate sleep: It is proven that sleep deprivation in humans can cause a total loss of the immune functions of the body. Thus it becomes mandatory to adopt a balanced sleeping schedule where the minimum duration to be regularly maintained is 8 hours.
Exercise: Appropriate exercise discharges collected strain, moves stagnant emotional and mental energy, enhances circulation, encourages proper elimination, improves digestion, supports sound sleep and promotes relaxation in the body. All these contribute to a healthy maintenance of the immune system. Adversely, improper exercise can prove to be damaging.
Meditation and yoga: The different types of Ayurvedic practices, each having a different set of benefits, are advised to be adapted so that you can sustain immunity. Some of these practices include yoga, pranayama, meditation, etc.
Herbal support: Different types of herbs in the Ayurvedic tradition, each having an affinity for a certain type of tissue, are capable of supporting the immune system. The advisable herbal supports include chyavanprash, turmeric, ginger, Tulsi, Shatavatri, Ashwagandha, turmeric, tulsi, trifla, giloy, Bronchial Support Herbal Syrup, Immune Support tablets, etc.
Regular detoxification: Regular detoxification (by Panchkarma procedures) of body as advised in Ayurveda , keeps basic body doshas ( Vats, pitta, kapha) in balance.
Rejuvenation therapy- After detoxification certain ayurvedic drugs, herbs are given for a long duration for rejuvenation, longevity of life, immunity boosting. It also prevents and cure diseases.

How Ayurveda Helps in Boosting Your General Immunity?

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