PSA: the 5-10-15 workout is the latest training style everyone's talking about. Joining the likes of other number-based exercise routines like the 25-7-2 workout, 3-2-8 method, and 4-2-1 method, the 5-10-15 workout is designed to make keeping fit feel easy.
The main premise is simple: you do five reps of a very intense exercise, ten reps of a moderately intense move and 15 reps of a slightly lower-intensity move. You'll repeat this as many times as you like, though the general consensus is that five sets work well.
