India, July 12 -- Trying to lose weight but don't have hours to spend at the gym? You're not alone. With busy schedules and fitness fads everywhere, finding a routine that actually works can feel overwhelming. But sometimes, the simplest tricks are the most effective. Fat-loss coach Fasih Hashmi shared in his July 7 Instagram post how he lost 20 kg in just 4 months with a simple cardio routine. Here's what he did and why it might work for you too. (Also read: Woman who lost 35 kg in 7 months lists 10 'healthy' foods you should stop eating for weight loss: 'Avoid brown bread' )

"This is a treadmill cardio routine I've personally used during cutting phases to stay lean without killing my knees," Fasih wrote in the caption. Let's take a loo...