If you’ve been training consistently and your strength has gone sideways for a year, you’ve probably wondered whether your hormones are the problem. Sometimes they are. Often the relationship runs the other way, and training is one of the better tools you have.

Both can be true at once, which is why this is worth untangling.

The post-workout spike is mostly a red herring

Heavy compound lifting produces a short-lived rise in testosterone afterwards. The supplement industry loves this finding. In practice it lasts under an hour and there’s little evidence it drives muscle growth by itself.

Don’t restructure your programme chasing it. The real benefits of training on hormones are slower and indirect.

Visceral fat is the bigger lever

Fat tissue — particularly the deep abdominal kind — contains aromatase, which converts testosterone to oestrogen. More visceral fat means more conversion, lower testosterone, and a harder time losing fat. A genuine feedback loop, and the reason some men feel they’re pushing uphill.

Losing it works. Weight loss reliably raises testosterone in men carrying excess, roughly in proportion to how much comes off. Of everything in this category, it has the most consistent evidence behind it.

Resistance training matters here as much for what it protects as what it builds: it preserves lean mass while you lose fat, which keeps your metabolic rate up and makes the loss sustainable.

Where more becomes less

Training helps until it doesn’t. High training volume combined with insufficient food, insufficient sleep or both suppresses testosterone. This shows up well documented in endurance athletes, and in anyone running a large deficit while training hard.

Signs you’re the wrong side of the line: performance declining despite consistency, persistent soreness, broken sleep, getting sick often, libido dropping away. That combination is not a reason to train harder.

Crash dieting does the same thing. Very large sustained deficits lower testosterone even as they reduce fat, which is part of why aggressive cuts feel so bad and rebound so often.

What actually works

Resistance training two to four times a week, compound movements, progressive overload. Enough to drive adaptation, not so much you can’t recover.

Some cardio, for cardiovascular and metabolic health. Not hours of it on top of heavy lifting unless you’re eating and sleeping accordingly.

A moderate deficit if losing fat. Slower is better here, and better tolerated.

Enough protein and enough total food. Chronic under-eating undermines everything above.

Deliberate recovery. Rest days and sleep are part of the programme, not a gap in it.

When training isn’t the answer

If you’re training sensibly, eating properly, sleeping well and have been for six months — and strength is still going backwards while energy, mood and libido have all dropped — that pattern isn’t a programming problem.

At that point the useful move is finding out what your levels actually are rather than adding another training block. Low testosterone caps what training can return, and no amount of effort gets round it if that’s the limiter.

The reverse is also worth saying: treatment doesn’t replace the work. The men who get the most from it are already training, sleeping and eating well. It removes a ceiling — it doesn’t do the lifting.

This article is general information, not medical advice. Speak to a doctor about persistent symptoms or before starting a new training programme if you have a medical condition.