LyrArc Article Gist
This excellent article by Peta Bee looks at how we can do anti-ageing efforts to keep our immune systems strong as we become older. She looks at work by an expert in immune cell biology, Janet Lord, who is head of the Institute for Inflammation and Ageing at Birmingham University. It is now proven that the link between ageing and immune systems can be guided in constructive ways. At sixty and seventy years age one can have the immune system of a 30 year old by doing a couple of simple things which are covered here from taking 10,000 steps a day, high intensity interval training on some days each month, occasional fasting on some days, high fibre diet and vitamin D.
Walking, running or other forms of exercize affect a particular form of immune function called neutrophil movement in positive ways. Neutrophil movement because these cells are the main defense against the forms of bacteria that cause pneumonia. Neutrophils in older adults behaved in ways similar to that found in 30 year olds when doing 10,000 steps a day of exercize. Dr. Lord and other researchers have found.
Dr. Jenna Macciochi, a lecturer in immunology at the University of Sussex, says about 70% of our immune system resides in our gut, making gut health very important for our immunity. Macciochi is the author of Immunity: The Science of Staying Well. Important for gut or gastrointestinal health is the eating of food that has prebiotic and probiotic effect. This helps reverse the decline of immunity coming with ageing.When we chew down on fibre in vegetables, fruit, beans or lentils we have beneficial byproducts called postbiotics that act as an interface between diet and immunity, that change the personalities of cells and circulate in our blood for regulation of immune system, says Dr. Macciochi. Postbiotics from eating dietary fibre tune up specific virus fighting cells that help us fight infections from flu and viruses, studies show says this report in The Times. Women in the UK get only 17g per day, men 20 mg per day of fibre. We need 30 mg per day of fibre and to do this we need to increase our intake of vegetables, fruits, whole grains, nuts, seeds and pulses.
Also important is avoiding the inflammation that comes with ageing called inflammageing, says Dr. Macciochi. To do this do resistance training, weights, or using body weight such as lunges, push ups, squats. When our muscles move we produce hormones called myokines that help our immune cells function and keep inflammation down. She believes strength work is an absolute essential to rejuvenate our immune age.
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