https://ift.tt/2wwdHAe Your Environment Is Cleaner. Your Immune System Has Never Been So Unprepared. your-feed-science, Immune System, Allergies, Children and Childhood A century ago, British scientists suggested a link between increased hygiene and allergic conditions — the first hint that our immune systems are becoming improperly “trained.” MATT RICHTEL https://ift.tt/2u2H09K March 12, 2019 at 05:30AM