Ben Lindon from Worcestershire, who was diagnosed with an inoperable brain tumour, went on to father a child despite doctors warning him he would be infertile.
He is now tackling the Three Peaks Challenge to raise money for brain tumour research.
Despite everything I actually feel very lucky. I very quickly decided that the best way to get through the experience would be to lead a much healthier lifestyle and try and focus on others that are worse off than me. I hope to use what was a very difficult and life-threatening experience for me to raise awareness about the woeful lack of funding for research into brain tumours - a disease which kills more children and adults under the age of 40 than any other cancer.
A man from Worcestershire diagnosed with a brain tumour at the age of 29 has defied doctors by not only undergoing 54 cycles of chemotherapy, but also going on to father a daughter and train for the Three Peaks Challenge.
Ben Lindon from Malvern is tackling Scafell Pike, Ben Nevis and Snowdon in aid of Brain Tumour Research, along with several doctors who helped him during treatment.