The former England prop’s candid podcast moment has ignited a wider conversation about testosterone, stress and what morning erections really say about men’s health

When Joe Marler openly wondered on the Voy and Man Alive podcast where his “morning wood” had gone, it landed with unusual force. Not because the topic is rare – quite the opposite – but because men almost never talk about it publicly. Morning erections are not a breakfast topic.

Clips of the conversation, in which Marler reportedly asked a men’s health specialist about the disappearance of his morning erections, have spread quickly across social media. It’s the collision of three things that guarantees attention: male vulnerability, sexual health, and a question many men quietly ask themselves.

Why it’s blowing up

At one level, it’s simple relatability. Morning erections – clinically known as nocturnal penile tumescence – are something most men experience throughout adulthood. When they fade, it can feel like a subtle but unsettling signal that something has changed.

But the bigger reason this has struck a nerve is cultural. Male health conversations still tend to orbit performance – strength, fitness, libido – rather than underlying physiology. Marler’s question cuts through that bravado. It’s not about performance; it’s about function.

And for many men in their 30s, 40s and beyond, it taps into a growing anxiety: Is this normal, or is something wrong?

What “morning wood” actually is

Morning erections are not primarily about sexual arousal. They are largely driven by the body’s sleep cycles – specifically REM sleep – during which the nervous system triggers spontaneous erections several times a night.

Waking up with one is essentially the final act of that process.

From a physiological standpoint, it’s a useful indicator. As one pharmacist quoted in reporting on the topic explains, morning erections suggest “a healthy blood and nerve supply to your penis.”

In other words, they’re less about libido and more about whether the underlying systems – vascular, neurological and hormonal – are working properly.

Marler’s question resonated because it stripped away the awkwardness and got to the point
Marler’s question resonated because it stripped away the awkwardness and got to the point

Is it about testosterone?

This is where things get more nuanced.

Testosterone does play a role in sexual function, libido and overall erectile health. Low levels can contribute to reduced frequency of erections, including those in the morning.

But it’s not a simple one-to-one relationship. Morning erections are influenced by a combination of:

  • Sleep quality (REM cycles are key)
  • Blood flow and vascular health
  • Nerve function
  • Hormonal balance, including testosterone
  • Psychological factors such as stress

That means their absence doesn’t automatically equal low testosterone—and their presence doesn’t guarantee optimal hormone levels.

A useful diagnostic clue

Where morning erections become clinically interesting is in distinguishing between physical and psychological causes of erectile issues.

If a man is struggling with erections during sex but still has morning erections, it often suggests the issue is psychological – stress, anxiety, or fatigue.

If both are absent, it can point more toward physical causes such as cardiovascular problems, diabetes, or hormonal imbalance, according to sources.

This is why doctors sometimes ask about them – it’s a low-tech but surprisingly informative diagnostic tool.

What might be going on?

Without speculating about an individual’s health, the broader picture is clear: modern life is stacked against the very systems that support healthy erectile function.

Three factors stand out:

1. Stress and cortisol Chronic stress elevates cortisol, which can suppress testosterone and disrupt sexual function.

2. Sleep disruption Poor sleep—especially reduced REM sleep—directly impacts the occurrence of nocturnal erections.

3. Lifestyle load Training intensity, alcohol, weight changes and even overwork can all play a role.

For high-performance athletes like Marler, the irony is that physical stress can be just as impactful as psychological stress.

Why this conversation matters

What makes this moment significant isn’t the biology – it’s the permission.

Men are often slow to engage with preventative health, particularly when it comes to sexual function. Concerns are either ignored or masked with humour. Marler did something subtly different: he asked the question out loud.

And that matters, because the takeaway isn’t panic – it’s awareness.

A change in morning erections isn’t necessarily a crisis. But it is a signal worth paying attention to. It can reflect sleep, stress, cardiovascular health, or hormonal shifts long before more obvious symptoms appear.

The bottom line

Morning erections are less about sex than they are about systems.

Think of them as a daily health check – one that reflects how well your body is functioning beneath the surface. Their absence doesn’t automatically mean low testosterone, but it does mean something in the chain – sleep, stress, blood flow, hormones – is worth examining.

Marler’s question resonated because it stripped away the awkwardness and got to the point: What’s normal—and when should I care? For many men, that’s a conversation long overdue.