Fitness challenge 2018

Hi! Would anyone like to take a fitness challenge this year to get in shape? I took up a reading challenge and it's been going well so far, as we have a whatsapp group where we encourage other people taking the challenge with us...so I wondered if people would like to take a similar challenge, wherein you set a fitness goal to achieve by the end of the year and then work towards it, while interacting with other people taking the challenge.
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