It was when my American coach Dan Pfaff came over from the States in 2009 and started working with me that we really began to look at my diet. He decided I was eating too many carbohydrates, so I cut back on bread. Over the next year I lost weight and became leaner.Collection: Diet
I'm a very keen baker; I pride myself on my cakes. I go along the classic sponge line, but I like to jazz it up: I've made some psychedelic birthday cakes.Collection: Birthday
Me and my brother just used to fight all the time; then my sister came along, and it was all about the little girl in the house. We'd always eat dinner together as a family.Collection: Time
My grandfather died before I was born, so I never had the chance to speak with him about his father. But I learned about him from books.Collection: Chance
People assume that you need to run fast to get to optimum fitness, but the truth is endurance lifting makes you stronger and leaner.Collection: Fitness
The type of IBS I am prone to is the constipation type, where I get trapped wind and can get sharp painful spasms in my intestines as well as having sluggish bowels.
I have been in discussions with the BBC regarding my involvement with SPOTY after hearing what I believe to be very outdated and derogatory comments from a fellow SPOTY nominee.
For a long time, I thought I'd be a physio if I wasn't a sportsman. At one point, I wanted to be an inventor, and I'd come up with little schemes.
I always start the day with a protein shake: protein powder mixed with water, peanut butter, and yoghurt to thicken it up.
Jumping isn't as important to my training as you might think; I'm only in the sandpit once a week. There's a high risk factor of injury doing it, so instead, I rely on my progress in the gym to judge how far I'll jump on the big day.
When at home in Buckinghamshire, I tend to work out for two to three hours on the track or in the woods close by and then do weights.
I eat a lot of vegetables and salad. I put strawberries, pomegranate seeds, blackberries, and blueberries into shakes and add Greek yoghurt for a snack. I have this when I'm not training.
I take magnesium to prevent cramps. A few years back, I suffered from hamstring tears, and part of that can be to do with muscle cramping, and then pushing the muscle at that point. I also take a fish oil supplement.
My favourite series of all time has been 'Band of Brothers.' That was amazing; I've watched that so many times.
I'm a bit of a history goon, and I love all that. Anything that's medieval-based up until, probably, the Tudor period and just after, I'm quite into.
Even though arguably I could have done much better at school, I'd decided at a young age that I was going to be a professional sportsman at some sport. And at that stage, there was a bit of luck: I was fortunate to meet the right people at the right time to get me to where I am now.
I drive relatively fast - within the remits of the law, obviously - but I struggle with people who do stupid things on the road. I have a massive urge to shout expletives at them.
People forget that track and field is one of the hardest sports because we compete against all the world. There are many sports when you are up against only 15 or 20 countries.
If you put me against most sprinters in the world, I reckon over a start I could get very close, if not take them.
It would be pretty special if I could win two Olympic gold medals, one at the Summer Games and one from the Winters, so I'm going to give it a real go.
During your career, you put yourself in peak physical condition, but then you bear the brunt of it for the rest of your life.
I don't think there are many long jumpers who can say they have jumped so hard that have lost their hearing.
Hopefully, I can get multiple distances out there and re-establish myself as one of the best jumpers in the world.
I am the Olympic, World, Commonwealth, and European champion now, and I hope that's enough for people to accept that I am a half-decent British athlete.
Ultimately, you've got to answer your critics on the track, and I am very much hoping 8.41m is acceptable for people.