Double Trouble: Twins Suffer Heatstroke in Same Marathon

It was more than a coincidence that a pair of identical male twins in England both suffered heatstroke "in relatively cooler conditions" while running in the London Marathon, a new case report suggests. During the 26.2-mile event, the 26-year-olds were both running in the race as "pacers" for the other competitors. One twin collapsed at the 19-mile mark, and the second twin collapsed at mile 21, according to the case report, published online Feb. 5 in the journal BMJ Case Reports.