Dumbbell beginner: how heavy and for how long?
Hi all - just to get it out there, I am an absolute beginner to weight loss and exercise regimes, and quite frankly I don't really know what to do. I have a pair of adjustable weights (2kg - 15kg each), and have a basic knowledge of technique from what I learnt at school. Currently I'm able to do 10 reps at 4kg, and…