Muscle is not just about looks after 40 — it is the organ of longevity. Here is how to build it safely and keep it.
Key takeaways
- Train 3-4 days a week with progressive overload
- Prioritise protein: ~1.6-2.2 g/kg daily
- Protect joints with controlled tempo and full range
- Recovery and sleep drive the results
Why it gets harder — and why it still works
After 40, recovery is a little slower and hormones shift, so randomly hard workouts backfire. But muscle responds to training at every age. The winning approach is structured progressive overload with enough protein and recovery, not punishing yourself in the gym.
The plan that fits a real life
Three to four focused sessions a week beat six rushed ones. Compound movements first, sensible progression, and joint-smart technique keep you training for decades. UnderForge builds this around your schedule and adjusts as you progress.
Protein, recovery and consistency
Aim for roughly 1.6-2.2 g of protein per kg of bodyweight, spread across the day. Sleep and rest days are when muscle is actually built. Above all, consistency over months — not perfect weeks — is what changes your body and your healthspan.