Well, I don`t prefer spending hours of time and energy every day at the gym. hence I could improve myself in studies and career (Yes I`m studious). Though I would like to maintain my BMI, also I don`t want to look flabby. so, I`ve taken workout very seriously this time!. So, tell me can I do short durational interval workouts like running faster for 10 mins then take some rest, doing 30 reps of pushups and squats for 3 sets with 5 mins interval between each. is that good for a beginner?.. also I`m 70KG 5ft, 6inches male.. so am I overweight?