impact on

The study shows, among other things, that changes in the gut environment have an impact on the composition and activity of gut bacteria.

"Policy interventions to improve air quality, as well as clinical guidelines to help pregnant women reduce their exposure to pollution, could have a direct impact on reducing pregnancy complications."

They also saw that younger monkeys experienced the strongest impact on immune performance.

She said that while their impact on bees is widely recognised, neonicotinoids also harm marine ecosystems, including river insects.

Such a ruling should not have a direct and immediate impact on medical care in California and the other Democratic-led states.