PFS and lifestyle: can exercise and diet help?

Living with post-finasteride syndrome (PFS) and wondering what you can change day to day? Exercise, food and sleep won’t cure it, but some people say they help them cope. Others find exercise makes their symptoms worse, so start small and watch how your body responds.

The UK leaflet for Propecia (finasteride) lists erection problems, lower sex drive and ejaculation problems that were “persistent” after “discontinuation of treatment”. Nobody has tested whether lifestyle changes help with that.

So what can exercise, diet and rest do, and where do you start?

Can exercise help with PFS?

It helps some people and harms others. No study has tested exercise in PFS, so everything we know comes from what people with PFS say.

Some say a walk, a swim or an easy bike ride lifts their mood and helps them sleep. Others lift weights or run. Some people, often those who are worst affected, have a crash after effort: symptoms flare for days afterwards.

That’s why the starting point matters more than the type of exercise. The NHS activity guidelines suggest adults aim for 150 minutes of moderate activity a week. Treat that as a far-off goal, not where you begin. If you have a health condition, the same page says to “speak to your GP first”.

To avoid a crash, start with much less than you think you can do, and change one thing at a time.

• Pick something gentle: a ten-minute walk, stretching or an easy swim.
• Keep a short note: what you did, then how you felt that evening and two days later.
• Add a little at a time: only after a week or more without a flare.
• Step back if you get worse: drop to the last level that felt fine, or rest.

A flare after exercise isn’t a failure, and it isn’t in your head. It’s useful information about what your body can handle right now.

Can diet or supplements help with PFS?

No diet has been shown to treat PFS. Eating well can still support your general health, your energy and your mood.

A varied diet with vegetables, fruit, whole grains, fish, nuts and enough protein covers most of what your body needs. Regular meals can also make sleep and energy steadier. If you notice that a food or drink, such as alcohol, makes a symptom worse, write it down and talk it over with your GP.

Be careful with supplements too. No supplement has been shown to treat PFS, and some people say a supplement, even a vitamin, made their symptoms worse.

Talk to your GP or pharmacist before you start one, and tell them about everything you take. If you’re thinking about tests to see whether you lack anything, our page on PFS bloodwork explains what is often checked.

What helps with stress, sleep and low mood?

Small steady habits seem to help many people more than big changes. Keep a regular bedtime, get outside in daylight and slow your breathing when panic hits.

PFS is a lasting condition, and it’s more than sexual problems. The 2022 diagnostic criteria say problems with cognition, depression and suicidality can come with it, and can even occur without any sexual difficulties. So a good day-to-day routine is about your mood, sleep and energy as much as anything else.

Talking therapy can help with anxiety and low mood, even though it doesn’t treat PFS itself. In England you can refer yourself to NHS Talking Therapies. Our page on anxiety and depression after PFS has more.

If you’re struggling or having thoughts of suicide, call the Samaritans free on 116 123 in the UK, day or night.

Matt has lived with PFS for five years. Watch this extract to hear how his symptoms reach far beyond sex, which is why daily routines matter so much.

Play video: Matt on five years of symptoms after finasteride

What can I do next?

That’s a decision for you and your prescriber. The Propecia leaflet says that if you notice depressed mood or depression, you should “stop taking Propecia and contact your doctor for further medical advice as soon as possible.”

Report it: it helps everyone

A doctor’s note helps you. A report to the medicines regulator helps everyone else: it is how patterns get noticed.

• No proof needed. A suspicion is enough, even years after stopping.
• Where: the Yellow Card scheme in the UK, MedWatch in the US.
• Use the right words. If symptoms continued after stopping, write Post 5-alpha-reductase inhibitor syndrome (MedDRA 10082430).

Our reporting guide walks you through it

What else do people ask?

Can lifestyle changes cure PFS? No. Nobody has found a cure, and no lifestyle change has been tested in PFS. Exercise, food and sleep may make some days easier to live with. That’s still worth something, and you can stop anything that makes you feel worse.

Can exercise raise testosterone or DHT and fix PFS? There’s no evidence that it does. Some people lift weights because they feel better for it, and that’s fine if your body copes. Don’t count on it to reverse PFS, and don’t push through a flare to try.

Why is there so little research? PFS has had little funding, and nobody has measured how often it happens. Reports to regulators and patient registries help researchers see the scale.

Keep the note of what helps and what doesn’t. Our PFS page is a good place to start, and our community is there when you want to talk to people who understand.

Sources

1. Healy D, Bahrick A, Bak M and colleagues. Diagnostic criteria for enduring sexual dysfunction after treatment with antidepressants, finasteride and isotretinoin. Int J Risk Saf Med 2022;33(1):65-76. Proposed criteria from expert agreement. Section 5 (finasteride): cognitive impairment, depression and suicidality “can occur independently of any sexual difficulties”. “The incidence of these conditions is unknown.”
2. Organon. Propecia 1 mg patient leaflet, electronic Medicines Compendium, last revised May 2026. Section 2: “stop taking Propecia and contact your doctor for further medical advice as soon as possible”. Section 4, frequency unknown: “persistent difficulty having an erection after discontinuation of treatment”; persistent decrease in sex drive and persistent problems with ejaculation after discontinuation.
3. NHS. Physical activity guidelines for adults aged 19 to 64. UK guidance for the general population, not for PFS.
4. NHS. NHS Talking Therapies. England only.
5. GOV.UK. Report a problem with a medicine or medical device.
6. Moral Medicine, Matt’s film on PFS, April 2026 (YouTube). Used as context about PFS, not as evidence about lifestyle.

Sources checked on 22 October 2026. AI-assisted writing and review, not clinical review.