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“The overall message of the article is a fair reflection of current scientific opinion that being physically active regularly throughout life most likely promotes healthy ageing of the immune system. However, it is very unlikely that being regularly active prevents ageing of the immune system, although it may slow or limit some of the negative effects.”
“The article contains some inaccuracies and simplifications, but is overall accurate. It is not clear which article and whose scientific data it refers to. Such information should be mentioned in the article. The type of stem cells that were used for the procedure is also unclear. Immune system renewal after hematopoietic stem cell transplantation has actually been demonstrated a long time ago…”
“Generally accurate. However, the main issue is that influenza viruses can also cause a “cold”, i.e. upper respiratory tract infection. A “cold” is a symptom/diagnosis whereas “influenza” is a virus that can cause symptoms such as a cold. There could be a better distinction by saying there are lots of viruses (flu, respiratory syncytial virus (RSV), human metapneumovirus (HMPV), rhinovirus, coronavirus, etc.) that cause respiratory infections including ‘colds’ and ‘chest infections’.”