Wolves Selena Gomez & Marshmello Download 'Wolves' on iTunes
Wingman & Rachel took on the first of our height challenges. How do they cope with the diving boards at Manchester Aquatics Centre?
We had them both hooked up to a heart monitor to see who could best keep their cool at heights. The most scared, loses! You can't cheat science so listen to the heart monitor results below and check out the video of the guys working their way up the boards at Manchester Aquatics Centre
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