The Block All Stars' Mark Bowyer fitter than ever after heart scare The Block's Mark Boyer with wife Jan and their four daughters. Pic supplied/Channel 9 Source: Supplied Contestants Mark (left) and Duncan from the reality TV show 'The Block'. THE Block All Stars contestant Mark Bowyer wants to put his fans' minds at rest. The lovable tradie says he is "feeling fitter than ever" despite a serious health scare which saw him have to leave renovation show. "I dodged a bullet," says the 55-year-old carpenter. It was a wake up call for me. I had become run down on the show, but once I got to hospital and they ran some tests they actually discovered a previously undiagnosed condition which meant that I not only couldn't return to complete The Block, I also had to change a lot of other things in my life. Mark has since changed his diet and started a daily exercise regime "I get up every morning and walk 6 kilometres and so far I have lost eight kilos. If I keep going at this pace I'm going to catch Duncan (who has lost 35 kilos since his first appearance on The Block in 2010). The Two Fat Tradies as they were affectionately known are now rapidly becoming The Two Flat Tradies. As scared as I was at the time - and disappointed to leave the show when I did, I now think The Block may have saved my life and with the support of my girls and wife Jan and the huge response I have had from the fans of the show I am feeling better than ever and glad to say I'm going to be around for a very long time to come. The news will come as a welcome relief to fans of the show that have come to love the down-to-earth lads who are known for the quick wit and quirky sense of style.