The warming climate is hitting us right in the gut, as new research shows that rising temperatures are taking a toll on the health of our gastrointestinal systems and impacting the food we consume. As climate change exacerbates health conditions, it also increases inequality around the world – and it's only going to get worse.
Heat stress is negatively affecting the human gut microbiome, according to a review published in Lancet Planetary Health. The microbiome is a complex ecosystem within the gastrointestinal tract that plays an important role in overall health. High external temperatures can "induce complex changes in the gut, including shifts in microbiota composition, increased oxygen levels and overproduction of stress hormones", said a release about the review. The effects of this can be far-reaching.
And the gut is not the only area under attack by climate change. "A warming world leads to all manner of health problems, including an increased risk of cardiovascular disease, exacerbation of pulmonary conditions like asthma and COPD, and mental health problems including depression and anxiety," said Time magazine.
The gut microbiome could "serve as a sensitive biosensor for climate-related health vulnerability", but broader data, especially from middle and low-income nations, is still required to see how "climate change is truly reshaping human biology", said Elena Litchman, a microbial ecologist at Michigan State University and the lead author of the review. Further research is essential as "shifts in gut microbial composition might offer early warning signs of climate stress in human populations, helping guide targeted interventions". |