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After being told he had approximately two years to live as a result of his obesity, US-based Carlos Orosco thought his time was nearly up.
Weighing 651lbs (46.5 stone) at age 38, he was sat in the doctor's office discussing the health problems he'd been suffering.
"The surgeon started the appointment by predicting that I wouldn't live to see 41," he told Runner's World.
"He told me I'd be 700 pounds by then, and would die from cardiac arrest. At the time, my sister was expecting, and I was going to be an uncle for the first time. I started to think of everything I'd be leaving behind."
Since then, not only has Carlos made it to 42, but he's completely turned his life around. After a life-changing surgery, an overhaul in his diet and the discovery of his love for running, he's lost a whopping 466lbs (just over 33 stone) - over half of his body weight.
What's more, Carlos is now even training for his first ever marathon and is living his best life.
At six-foot-one, Carlos explained that he had 'always been a bigger person', but it was in his 20s that his weight spiralled out of control as he was living alone and had no one to control what he ate and drank.
Years passed, and he continued to live on fried meals, fast-food, bread, fizzy drinks and alcohol, which he said he consumed for comfort. By the time he turned 38, he'd reached his heaviest.
As well as a blood infection that caused severe swelling and ulcers in his legs, Carlos also suffered from extreme gout, sleep apnea and high blood pressure.
At this point he decided enough was enough, the symptoms prompting him to meet with a surgeon and discuss the option of a laparoscopic sleeve gastrectomy, which involves a 75 percent removal of the stomach.
"He told me bluntly that if I didn't change my lifestyle, I probably wouldn't make it to my early 40s," Carlos explained. "I was stunned by his prognosis."
In 2016, he went through with the procedure, but not before losing the compulsory 100lb required to go under the knife.
Carlos went to see a dietician, who urged him to swap the junk food for vegetables, fruit and lean protein.
What's more, he went on long walks every day - and soon enough, the weight started to drop off.
Carlos continued to lose weight after the surgery, although admits he hit a plateau when he reached 350lbs. However, when a friend passed away, he decided to take part in a 5k run fundraiser, and that's when everything changed.
During the event, he felt so much love and support that he's since ran 36 races and is currently training for his first marathon in October.
This allows Carlos to raise money for good causes while also continuing to lose weight.
"I feel like a new person, really. I have been blessed with a second chance, another opportunity," he added.
"I realise that not everybody has the chance, has that second opportunity to do it, and that's really what it feels like to me, a chance to do things the right way this time."
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