This is how many sit-ups you should be able to do for your age – and why it matters
Whilst almost anyone can do a crunch or a sit-up, for most of us the higher reps remain…
How you can get a six-pack in just three months without spending hours in the gym: Follow this scientific guide as our leading experts reveal why everything you’ve been told about building muscle is wrong
It’s the holy grail of fitness – a toned midriff, the ultimate hallmark of an athletic, sculpted body.…