Immunity, Environment And Nutrition For Winter

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Immunity, Environment And Nutrition For Winter

Immunity, environment And nutritional  for winter

Seasonality is observed in almost all infectious diseases. This seasonality is observed in respiratory
infections such as influenza, to diarrhoeal diseases such as cholera and vector-borne diseases such as
malaria. Factors that are involved in the seasonality of infectious diseases are environment and host
immunity.

Environment
Exposure to cold temperatures affects the physical, cellular, and molecular defenses against
pathogens in humans. Normal physical barriers to infection can be damaged by cold temperatures,
such as increased mucus viscosity and decreased ciliary action in the upper respiratory system.
Cutaneous barrier function upon cold exposure is also disrupted. Furthermore, exposure to cold
temperatures causes secretion of the stress hormones norepinephrine and cortisol, lymphocytosis
and decreased lymphocyte responses (part of adaptive immunity). The increased production of
corticosteroids and catecholamines following cold exposure impacts immune cell function negatively.
Norepinephrine especially is involved in many of the physiological and immunological changes
observed with cold temperature. Changes in immunological parameters similar to physiological
changes are dependent on the severity of the cold exposure. Several studies have found that exposure
to cold temperatures induces a decreased immune function and increased susceptibility to infection.

Nutrition
Seasonal variations in nutrition also occur in many settings, and a direct link between poor nutritional
status, reduced cell mediated immune responses and an increased risk of infection is well established
in children. Vitamin D levels are consistently lower in winter and spring months in temperate settings.
This vitamin D deficiency increases the risk of respiratory infection in children. The most specific effect
of vitamin D deficiency on immunity is a reduction in the antimicrobial peptide cathelicidin, a part of
the innate immune system, which is expressed in white blood cells and bronchial epithelial cells
present in the lung. Vitamin D can be obtained via dairy and animal products.
Boosting your immunity

Immunity

Immunity can be boosted by eating food containing antioxidants. Vitamin A, C, E, carotenoids and
flavonoids are antioxidants we should eat in sufficient amounts to boost our immunity. These
antioxidants are found in coloured fruits and vegetables, like berries, green vegetables,  pumpkins,
spinach and broccoli.

winter-oil

winter oil

Pure WInter Oil- your winter essential to prevent and protect from colds, flu and coughing

 

 

 

 

 

 

Author: dr. Vinod Sommandas, Wellbeing Tutor at Vedanta Wellbeing PhD

If you have any questions/comments please feel free to reach out to me by connecting on Linkedin or by email info@wellbeingphd.com. More information can be found on the company website of Vedanta Wellbeing PhD www.wellbeingphd.com and facebook www.facebook.com/wellbeingphd.

By | 2016-10-31T15:46:03+00:00 January 12th, 2016|Health issues|0 Comments

About the Author:

Pure natural cosmetics is not just a name, for me and many others it became a way of life! All my life I had an affinity to healthy life style. As a dancer and a trainer, i was always looking for the good combination of healthy food and healthy movement. In time I learned that its not only what you eat that matters. Also what you use as cosmetics or medical products is important. The skin is the biggest organ in our body. About 60% of what we put on our skin gets into the blood system and with that to the inner organs. I invest my heart and soul into “Pure natural cosmetics” and the best part is to hear the amazing comments from my client.

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