This unofficial diagnosis describes the anxiety-driven, compulsive obsession with living as long as possible. While it might seem healthy to monitor your diet, exercise and biomarkers, it can come at a huge emotional cost

It was a pitta bread that finally broke Jason Wood. It arrived with hummus instead of the vegetable crudites he had preordered in a restaurant that he had painstakingly researched, as he always did, weeks before he and his husband visited. “In that moment, I just snapped,” he recalls. “I hit rock bottom, I got angry … I started crying, I started shaking. I just felt like I couldn’t do it any more, like I had been crushed by all this pressure I put on myself.”

Today, Wood, 40, speaks calmly. Neat and groomed, he seems orderly by nature. But at that time, his attempts to control every aspect of his life had spiralled. He painstakingly monitored what he ate (sometimes only organic, sometimes raw or unprocessed; calories painstakingly counted), his exercise regime (twice a day, seven days a week), and tracked every bodily function from his heart rate to his blood pressure, body fat and sleep “schedule”. He even monitored his glucose levels repeatedly throughout the day. “I was living by those numbers,” he says.