A kind father lost about 57 kg in just six months after being shamed dieting when he became too fat to play with his young daughter. Chris Willis, 47, tipped the scales at 172 kg following a lifetime of fatty foods. But overweight Chris turned to dieting when he realized he was too fat to play with his ten-year-old daughter, Sophie, who had a passion for running.

The determined dad cut out all the fatty foods he had enjoyed, and began exercising. He now weights 105 kg after losing 10 kg every month since July. Chris, who lives in Shepreth. Cambridgeshire with his wife Jackie. 51, a coach driver, said: “The hardest thing was seeing my little girl in the garden and not being able to join in because I was so unhealthy. But now I am making up for lost time---we do so much together and it is just great.”

Chris used to consume an incredible 5,000 calories a day, before he switched to healthy lifestyle. On average he would eat five slices of bread for breakfast as a mid morning meal before a full English breakfast. He would then eat a sandwich, a large pack of crisps and a pasty for lunch before chewing a whole packet of biscuits in the afternoon. For dinner Chris would demolish a curry(咖啡) and, ice cream, and also drink four pints of beer very quickly, before feeding on fatty snacks all evening.

Amazingly Chris claims he still eats the same amount---but has simply cut out the unhealthy fatty foods. Chris said: “'My family and friends have been so supportive and my wife and daughter are so pleased for me. In fact it’s them I did it for more than anyone else. The whole journey has been amazing and I am still shocked myself that I have managed to lose so much weight.” Chris is now aiming for a new target weight of 96 kg.

Scientists have long debated (辩论) the best diet for health. But now some experts believe that it’s not just what we eat that’s important for good health, but when we eat it. When our diet habit matches the biological clock well, our body can work at its best. Breaking the rule—by eating late meals or having midnight snacks, for example—could lead to weight gain and metabolic (新陈代谢的) trouble.

Many people, however, eat from the time when they wake up until shortly before they go to bed. Studies show that the average person starts with something like milk and coffee shortly after rising and ends with a glass of wine, a late-night meal or a handful of chips, nuts or some other snacks shortly before bed. That habit of eating is against our biological rule.

Scientists have long known that the human body has a master clock in the brain, which controls our sleep-wake cycles in response to bright light exposure (暴露). A couple of decades ago, researchers discovered that there is not just one clock in the body but a collection of them. Every organ has a clock that controls its daily cycle of activities. Studies show that in every organ, thousands of genes (基因) are turned on and turned off at almost the same time every day.

We’ve lived on this planet for thousands of years, and while many things have changed, there has always been one constant: Every single day the sun rises and at night it falls. We’re designed to have 24-hour systems in our body. They exist because, just like our brains need to go to sleep each night to repair and reset themselves, every organ needs to have time to repair and reset itself as well.