Greg Whyte certainly knows how to stay in shape
Greg Whyte is a world renown expert at helping non-athletes to compete amazing feats.
He's worked with Eddie Izzard and his super marathon; Christine Bleakley water skiing across the Channel; Fearne Cotton, Cheryl Cole and Chris Moyles climbing Kilimanjaro; Olly Murs, Kara Tointon and Dermott O'Leary and their camel race across the dessert and most recently with David Walliams and swimming the Thames, lest we not forget that he also swam the Channel.
We talked to Greg, who tells us some tips for winter fitness, how we can all make time to work out and what his work-out must haves exactly are.
You trained with David Walliams for his recent swim on the Thames - how was that?
It was tough, very, very tough. I would probably say it was the toughest Sport Relief challenge we've done to date.
How determined is David, because he's obviously completed the Channel swim too?
He's incredible, his tenacity and his work ethic is second to none really. He personifies what's great in all of us really. That ability to push himself physically, over and beyond what most people would ever be able to do.
You work very closely with Sport and Comic Relief - what are the next few things you have planned, or are already in training for?
We're currently planning the next Sport Relief challenge, so we don't really know what it's going to be but we're working on it.
We're heading into winter and a lost of people lose the desire to venture out into the cold to workout - what sort of motivational tips do you have for them?
It's an interesting one because winter is a really funny time, you've got that classic Seasonal Affective Disorder (SAD), where we sort of miss the sunshine and we get into this state which is never helped by the fact that we never go out, we go from the house, into the car, into work, back into your car and back into the house. Often people don't get very into it in the winter. But what they really want to do, is try and get outside as much as they can. If you don't like the dark, then try and get out as much as possible on the weekends. 
Are there any particular exercises or activites that you would suggest people do during winter?
It's really about making sure that you prepare and you plan, for your exercise in the winter a little bit more than you do in the summer months.
What sort of fitness trends are you predicting for the New Year?
Things like adventure races and some of those more quirkier things. I think people are looking for something slightly different now.
What tips do you have for someone who doesn't have the time to go to the gym?
The bottom line is, you can fit in exercise at any time of the day. And the thing to think about is, you don't have to do the full 30, 40 minutes or traditional hour of exercise, all in one go. What you can do, is pick up small pockets of exercise. Putting it parallel to food; rather than eating a full meal at once, you can snack on it. You can accumalate minutes of exercise over the day and get the same sort of response if you went to the gym for a 45 mintue session.
The other thing is to take advantage of opportunities. Instead of driving to work, walk. Instead of taking the lift, take the stairs. Those things were you can take opportunities to do a bit more exercise.
During winter the meals tend to get more stodgy and warming - do you have any healthy eating tips to help people from piling on the extra weight?
It's a beautiful point, and the point is, you don't need to do that. I think that all of a sudden, people think that you need this winter warming food. But there is no need for it, it's more of a cultural thing. People need to make sure that they actually stick to the same diet. Don't alter your diet. Obviously with fresh fruit and vegetables, particularly summer fruits that aren't available, actually there are good alternatives to those and all people have got to do is search those out and try and stick to a similar diet. There's no need to go stodgy.
Finally, what are your work-out must-haves?
Number one is enjoyment. You can't buy it and you can't put it on at the beggining of a session, but without any shadow of a doubt, what you've got to do is you've got to find something that you enjoy because if you enjoy it, you'll keep on doing it over time. You'll get not only physical benefits from it, but also pyshcological benefits from it.
Number two is that good things don't come easy. And to assume that exercise is going to be easy, I think sometimes what your expectation is what drives your enjoyment. So you've got to expect to work hard, but you reap the benefits and enjoy the benefits of working hard.
The final thing is, don't do it alone. Get a training buddy, or get a group that you can exercise with because you can have a damn site more fun with a group of people.
Femalefirst Taryn Davies
Greg Whyte is amabassador of Glacéau vitaminwater.
Tagged in fitness tips