★ 6.4
★ 0.0
★ 8.0
★ 7.8
★ 6.5
★ 7.5
★ 7.0
★ 7.2
★ 10.0
From peanuts and pollen to cats and dust mites, allergy rates are soaring dramatically all over the globe. Experts are predicting that by 2050, one in two will suffer from an allergy. Why are our immune systems overreacting in this way?
