Nairobi, Aug. 16 -- For Caleb Mogoa, going to the gym is not optional. Even when he is unwell, the software developer says he still makes his way to his workout.

"I work from home, so if I do not go to the gym, I will be in the house the whole day. Working out is a norm to me. Even if I am not feeling well, I still go to the gym."

It is a routine he has maintained for more than five years, but the gym became more than a place to build muscle after a tragedy that changed his life.

Caleb was a passionate rugby player who represented his primary and secondary schools and later played at national level. However, a knee injury curtailed his rugby career when he joined campus. He had also been bullied for his small frame, prompting him to ta...