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 such as legs and back with compound lifts, moderate-to-heavy weights and short rest. That spike is temporary, lasting an hour or so, and on its own it does not change your baseline. Research that tracked the post-workout rise found it barely predicts how much muscle a man builds, which is the same point made in does testosterone build muscle. So the headline that "lifting boosts testosterone" is real but usually 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, while more muscle improves insulin sensitivity and 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. How to train for that:

• Lift 3 to 4 times a week
• Prioritise big compound movements: squats, deadlifts, presses, rows
• Add weight or reps over time, since progression is what drives the adaptation
• Recover properly, because overtraining without rest raises cortisol and drags testosterone down (the same caveat applies to excessive cardio)

For the training itself, the sweet spot is unfussy: most sets in the 5-to-12-rep range, a few hard sets per muscle group across the week, and enough effort that the last reps are genuinely difficult. You do not need to chase the hormone response with exotic protocols, because the body composition you build over months is doing the real work regardless of the post-set numbers.

What to do: train for the long game rather than the spike. Combine the plan above with enough protein and sleep, give it the weeks it needs (see how long it takes), and lifting becomes one of the most reliable natural levers you have.