Outlander star Sam Heughan – along with Fight Camp Glasgow’s John Valbonesi and Bear Strength Clothing – is calling for fans to take the #PeakPledge as part of his My Peak Challenge campaign in aid of Leukaemia & Lymphoma Research.  As the countdown to the official My Peak Challenge Weekend on 14 and 15 March begins, the Hollywood star is encouraging fans to take to Twitter and post their personal #PeakPledge. Whether it be a mental goal or active…