'This is why we run': Marathon entrants on the causes powering their 26.2 miles

Emma Oliver is campaigning for the charity Team Daniel, which she set up following the death of her son [Handout] Ten thousand feet are set to pound the streets of Leeds as runners take part in the Rob Burrow Marathon and Half Marathon later, but what drives some of those to tackle the 26. 2-mile (42km) run? "People have said to my face, 'Daniel took the coward's way out'.

This is why we need to keep raising awareness," Emma Oliver says. After the death of her teenage son, she set up a charity to support young people's mental health. Emma runs on Sunday for Team Daniel.

"I knew he was getting stressed, obviously I did not realise how stressed," she explains. Daniel took his own life in February 2017. The 15-year-old was in the middle of studying for his GCSE exams.

"It just got too much for him," remembers Emma. "I did everything. I approached the school, I paid for a maths tutor to come in three days before he took his own life.