Should I increase weights at the gym? How often? And by how much?
- Written by Hunter Bennett, Lecturer in Exercise Science, University of South Australia

Many of us go to the gym to bulk up. But how does it actually work?
When you lift weights, it increases tension on the fibres in your muscles, and causes metabolic by-products (such as lactate and hydrogen) and inflammation to build up in the muscle tissue.
These signals tell your muscles to adapt and grow stronger.
But if your...