AndroAge: your Night-Time Erection age, made measurable

AndroAge™ is a single score that benchmarks your night-time erection activity against healthy averages, so you can track your trend over time.

Think of erections as exercise for your penis. It follows the rule of use it or lose it.

If erections don’t happen often enough, erectile tissue can begin to change. Over time it can become less elastic and more scar-like, which contributes to erectile dysfunction and can even be associated with penile shortening. The problem is that during the day, erections are naturally inhibited unless you’re sexually aroused, for obvious social reasons.

So nature found an ingenious solution.

During REM sleep, that daytime “brake” is released. This triggers a series of automatic overnight maintenance cycles, typically 3 to 5 times every night in healthy men. You’re not trying to perform. Your body is simply running scheduled maintenance.

In young men, this maintenance is often robust. Total Erection Time (TET) can represent roughly 30–40% of total sleep time. With age, this tends to decline, and by around 70 it’s common for TET to represent less than ~10-20% of sleep time. But while common, this decline is not inevitable.

The Adam Sensor measures this critical maintenance output. AndroAge™ translates it into a single number you can track: a benchmark of your nocturnal erectile performance compared to healthy averages across different age groups, informed by published research and refined using our own growing database.

What makes this powerful is that night-time erections don’t depend on one isolated factor. They tend to show up reliably when multiple core systems are working in sync overnight: sleep architecture, vascular responsiveness, nerve signalling, hormonal environment, and metabolic health. When any one of those drifts, night-time erections can weaken.

How AndroAge is calculated

The main driver behind AndroAge is Total Erection Time (TET): the total time spent in erection episodes overnight.

AndroAge compares your TET-based pattern to healthy age-group benchmarks and expresses it as a single “NTE age” proxy you can follow over time. The intuition is simple: more total erection time generally maps to a “younger” AndroAge, and less maps to an “older” AndroAge.

It’s important to remember that these relationships are based on healthy population averages. That means there’s natural variation between individuals, and even within the same person from night to night. So if your AndroAge comes in a bit older or younger than your chronological age, that alone is not a reason for concern. AndroAge is a wellness metric built around benchmarks, and individual scores can sit above or below chronological age without indicating any issue.

There is also always natural variation in night-time erection activity, especially in the first few nights of recording. Even when nothing fundamental has changed, the number can move because the night moved. Shorter sleep, more awakenings, a different REM profile, late alcohol, travel, illness, heavy late meals, or a tougher training/recovery window can all shift the output. This isn’t a bug. It’s biology. Treat single nights as information, not judgement.

How to improve your AndroAge

Improving AndroAge is about helping your body run stronger, more consistent overnight maintenance cycles.

The encouraging part is that AndroAge doesn’t move in a straight line. When your TET is low, the curve is steep, which means small, realistic improvements can create a big change in your score. If your TET is already high, the curve flattens, so gains still matter, but the score moves less.

For most men, the highest return comes from sleep. Night-time erections are most strongly linked to REM sleep, so the fastest way to increase TET is usually to improve sleep duration and continuity. Protect a consistent sleep window, give yourself enough time in bed, and reduce fragmentation. Even modest reductions in awakenings can make a measurable difference.

Next, remove the common disruptors. Late alcohol, heavy late meals, high stress late at night, and inconsistent schedules don’t just shorten sleep; they often change sleep quality and recovery. If you want easy wins, these are often the first levers that show up in the data.

Over the longer term, the biggest driver is your underlying physiology: hormones and cardio-metabolic health. Night-time erections depend on a supportive testosterone environment and on blood vessels being able to dilate and deliver flow on demand. When the foundations improve, both tend to improve together, and AndroAge often follows. The basics are unglamorous but powerful: regular resistance training and aerobic fitness, managing central body fat, adequate protein and overall nutrition, and keeping blood pressure and glucose under control.

The most important mindset is to use AndroAge as a feedback tool, not a daily verdict. Establish a baseline, make one change for 10–14 days (sleep consistency is the best place to start), and watch what happens to your rolling trend. If your baseline is low, you’re in the sweet spot: you don’t need a miracle. Small, consistent gains can translate into a meaningful shift in AndroAge.