Guide to running: food and drink supplements tested
There are a huge number of gels, supplements and snacks on the market: we tried a small selection, and here's what we thought
Cycling is good for you… and other peddled lies
Kevin McKenna: While bike users are endlessly cosseted, Scotland's real health issues remain shamefully unaddressed
From 18-and-a-half stone to sub-3 marathon runner in 10m easy steps
In 2004, Nick Van Mead was an 18-and-a-half stone, 40-a-day junk food addict who suffered from blackouts. Last Sunday, he ran the London Marathon in under three hours. What changed?
How I train: Louis Smith, gymnast
Olympic gymnast and Strictly star Louis Smith on avoiding carbs, crisps and chocolate, training twice a day, six days a week, and looking up to his mum
LA Fitness drops add-on swimming charges for children
Gym chain agrees it broke the terms of its own contracts after investigation by Observer
Is Andrew Marr’s stroke proof that high-intensity exercise is dangerous?
The TV presenter has blamed his stroke on overwork and an intense rowing machine session. So could high-intensity, short-burst exercise be worse for you than none at all?
Running wild in Dartmoor
A 26-mile run across Dartmoor is not everyone's idea of a weekend break, but Adharanand Finn finds it an exhilarating form of escapism – just as long as you watch your step
The benefits of hibernation on my skin and hair make winter worthwhile
Invisible Woman: A visit to the GP makes me feel old, but the promise of spring is a reminder that curling up on the sofa for six months has its pros
Why running is the perfect pastime for geeks
When self-confessed nerd Mark E Johnson took up running, he was surprised to find so many of his fellow geeks pounding the pavements. But then it began to make sense …
How to deal with cellulite: scrub it or forget about it
Hadley Freeman: No one will run screaming at the sight of your dimples at the beach or pool, because no one cares, believe me. But if you care, that's different, and help is at hand
Tough Mudder: it’s Fight Club without actually being punched in the face
Stuart Heritage: My brother has forced me to take part in Tough Mudder, a gruelling assault course. I honestly can't think of anything worse
How to run safely in the mountains: 10 essential bits of kit
What kit does a road runner need to head for the hills in safety? Nick Van Mead gets geared up and hits the Lake District
The Tabata workout programme: harder, faster, fitter, quicker?
Dr Izumi Tabata has developed a punishing exercise regimen that he claims can boost cardiovascular health in minutes – and now he is bringing it to the masses
Running-injury recovery in five stages
Jessica Reed: 'My name is Jessica and I am an injured marathon runner.' Say hello to Jessica, everyone.
Should I make my children take more exercise?
It can be infuriating if your kids spend all day inside playing computer games. And they may be doing themselves long-term harm, say experts. So what's the answer?