Immune performance is a report card of many habits
When infections become persistent, it’s time to assess daily habits and general health. This can help determine ‘areas of improvement’ to restore peak immune performance. Beyond basic personal hygiene, our defensive ability against infection is most effective when we prioritise healthy nutritional choices, get enough restful sleep and maintain beneficial levels of protective gut bacteria. These factors are key for supporting strong immune barriers (e.g., skin and nasal membranes) that trap and destroy microbes before they can flourish. Additionally, these habits can influence the body’s ability to form a robust team of innate and adaptive immune cells that target invading pathogens.
Outside of these aspects, persistent tissue inflammation may also contribute to prolonged infection. For example, intense exercise that exceeds physical activity guidelines, chronic work-related, personal or mental stress and toxin exposure (e.g., cigarettes and alcohol) can all compromise immune barriers. Consequently, budding infections can gain momentum – making it difficult for the immune system to control their spread. In addition, other inflammatory health issues (such as being overweight) can also diminish immune function, especially as we age. As it goes, maintaining a high-performing immune response depends on the foundations we build!
Antibiotics and immune health: the problem with throwing the good bugs out with the bad
Research shows that the microbiome has evolved with us to help fight infection. In fact, the number of cells within our gut microbiota outnumbers our body cells 4:1 – so it’s important to consider the bugs that make up 80% of the body. When it comes to infections, antibiotic treatments for common pathogens (such as Staphylococcus aureus and Escherichia coli ) have been shown to reduce levels of essential immune-enhancing species. This in turn can increase susceptibility to infections – especially against microbes that naturally coexist on barrier surfaces, which can flourish when host immunity is impaired.
Specifically, antibiotic use is linked to reduced levels of the immune-supporting bacterial metabolite, butyrate. In action, butyrate controls pathogen growth through several mechanisms, which help to repair barrier damage caused by infection. As such, maintaining a healthy microbiome abundant with butyrate-producing gut microbiota can prevent infections from hanging around – especially in patients with a history of antibiotic use.
Other ways to speed up the healing process, naturally
Aside from healthy habits and the microbiome, natural medicines can lower infection risk, particularly against recurrent infections. For instance, medicinal mushrooms cordyceps, coriolus and reishi have been found elevate innate and adaptive immune cells over 8 weeks in human clinical trials. In the same vein, zinc intake promotes healthy mucosal barriers, in addition to boosting the synthesis of immune cells. Importantly, data indicates that over a quarter of men and 10% of women in Australia are likely to be zinc deficient, highlighting the benefits of taking zinc to help conquer infection.
Life is too short to be fighting with infections that hold us back. For better immune health, individuals can audit habits, support the gut microbiome and stimulate natural immunity to shut down infections before they become an ongoing battle.
Leave a Reply