Does lifting weights increase testosterone?

Yes — but the lasting benefit comes more from what lifting does to your body than from the short hormone spike after a workout.

Heavy resistance training does produce an acute rise in testosterone right after a session — larger when you train big muscle groups (legs, back) with compound lifts, moderate-to-heavy weights, and short rest. But that spike is temporary, lasting an hour or so, and on its own it doesn't change your baseline. The headline “lifting boosts testosterone” is real but often overstated.

The durable win is indirect and far more powerful: consistent strength training builds muscle and strips away body fat. That matters because fat tissue converts testosterone into oestrogen, so losing it shifts the balance in your favour. More muscle and less fat also improve insulin sensitivity, which supports healthy hormone production. Over months, the lean, strong body you build is what keeps your testosterone where you want it — not the post-workout blip.

What to do: train for the long game. Lift 3–4 times a week, prioritise big compound movements (squats, deadlifts, presses, rows), add weight over time, and recover properly — overtraining without rest does the opposite, raising cortisol and dragging testosterone down. Combine that with enough protein and sleep, and lifting becomes one of the most reliable natural levers you have.