New findings challenge conventional thinking about how the immune system protects us.

In case you didn't know, there are two different types of fat in your body: white and brown. While the white fat stores energy from the food we eat, brown fat, in contrast, burns the fat to produce heat in the body. Both white and brown fat tissues also have their own immune systems, and scientists are only just beginning to understand how these work. The latest research, led by immunologists at Trinity College, Dublin, and published in the journal Nature Immunology, adds greatly to this understanding.
A type of immune cell, called Gamma delta T cell. So long thought to work at the barrier sites of the body, to guard from infection (below)
  • In the current study, these were found in the fat cells
  • Scientists say they have a key role in turning bad fat into good fat and also protecting us against the cold
  • Portion control is crucial as weight gain can harm the immune system
  • Avoid sugar and refined carbs
  • Add nutrients to your diet: vitamins C and E; omega-3 fatty acid; bioflavonoids found in vegetables and fruit; foods that are rich in immune-boosting zinc, like beans
  • Get 7-8 hours of daily sleep, as sleep deprivation can weaken your immune system
  • Steer clear of infections: so clean your cellphone and TV remote daily, change towels after 3-4 uses, dust ceiling fans, vacuum carpets, wash bed linen weekly, clean kitchen sponges regularly, change razor blades after 1-2 weeks, change air filters in your AC, change toothbrush heads every 3 months


Diabetes is called an autoimmune disease. Especially in type 1, the immune system mistakenly attacks and destroys insulin-producing pancreatic cells, leaving patients dependent on lifelong insulin injections. In type 2, the body either does not produce enough insulin or does not use it correctly. Be it type 1 or 2, diabetes can lower the actions of the immune system, making those with diabetes more prone to chronic illness and infections.

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