Sitting beside a woman in Bangladesh, watching the tears roll down her cheeks, I searched for some words of comfort. But none came. This bereaved mother, Hosna, was bravely recalling the day that her 11-year-old son, Emamul drowned in front of her very eyes. He was just playing beside a calm and still river bank when he fell in. He had no idea how to swim so, within minutes, he was gone. It goes without saying that Hosna's story is devastating. No mother should have to face the death of their child. But what I found most difficult to comprehend is that she's just one of 50 grieving mums who lose a child in this way every single day across Bangladesh alone.

This weekend, Sport Relief is running masses of activities this weekend to raise money for charity. But not all charities are the same. So is Sport Relief a good one?

Ahead of this weekend's Sport Relief, we bring you one of its most dedicated trainers who attempted their sponsored mile. Misery Bear, the chips-lo...

Being asked to do a challenge for Sport Relief is like being asked to be the god parent to an ugly baby. Despite knowing you will forever have a picture of an ugly baby hanging on your wall in case your godchild's parents come to your house, it is very difficult to say no. How hard can it be anyway? You just smile by the font at the church at the christening, buy the child something silver and post a card once a year with an increasing amount of money in it. As for the picture, you just hang it in the room in your house you visit the least, although from experience hanging it in the shed always causes upset...

Eight years ago, July Letsebe was lying on a bed in his small tin shack, waiting to die. Seriously ill with tuberculosis and - although he didn't know it yet - HIV, he had all but given up hope of surviving for more than a few weeks.

I grew up in Preston next to four housing estates and went to a school notorious for crime. A lot of the kids in my neighbourhood spent their time hanging around the streets nicking stuff and getting into trouble. For me it was all about the cricket. I believe that sport gives you purpose and direction and a sense of being part of a team. It's obviously far better to focus on something positive, as opposed to something destructive. Sport makes you feel good and proud.

Andrew Flintoff has started his 12 records in 12 hours Sport Relief challenge. The ex-England cricketer smashed the Guinness World Record for drink...

Everyone that knows me is aware that my talents don't extend to singing. In fact you could say that I'm a bit tone deaf. But you can't let your limitations stop you. At least that's what I was told by Austin Healey when he twisted my arm and asked me whether I would join The Sport Relief Big Hitters Choir and help raise money for Sport Relief.

The London 2012 Games are a real once-in-a-generation opportunity. I'd encourage everyone to join the team and make the most of these games.

Sport Relief was set up in 2002 to use the power and passion of sport to do good. It was founded on the premise that sportsmen and women have the power to drive awareness and engagement; and that the convening power of sport itself offered a genuine opportunity to drive change.