New research is suggesting a there is possibly a link between allergic conditions such as asthma and hay fever and irregular periods.In a survey of more than 8,500 wome, aged 25-42, a Norwegian team has found that rates of asthma and allergy were far higher in women who had irregular rather than regular periods.The Thorax study points to metabolic problems, such as insulin resistance, as an underlying cause for both.The team say their findings add further evidence to the argument that female hormones might play a role in allergic diseases. To read the whole article please visit News-Medical.Net Other news articles about allergies and irregular periods can be found at :WebMDHealthBBC News | Health