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PhD Burnout: Managing Energy, Stress, Anxiety & Your Mental Health

PhDs are renowned for being stressful and when you add a global pandemic into the mix it’s no surprise that many students are struggling with their mental health. Unfortunately this can often lead to PhD fatigue which may eventually lead to burnout.

In this post we’ll explore what academic burnout is and how it comes about, then discuss some tips I picked up for managing mental health during my own PhD.

Please note that I am by no means an expert in this area. I’ve worked in seven different labs before, during and after my PhD so I have a fair idea of research stress but even so, I don’t have all the answers.

If you’re feeling burnt out or depressed and finding the pressure too much, please reach out to friends and family or give the Samaritans a call to talk things through.

Note – This post, and its follow on about maintaining PhD motivation were inspired by a reader who asked for recommendations on dealing with PhD fatigue. I love hearing from all of you, so if you have any ideas for topics which you, or others, could find useful please do let me know either in the comments section below or by getting in contact. Or just pop me a message to say hi. 🙂


This post is part of my PhD mindset series, you can check out the full series below:

  1. PhD Burnout: Managing Energy, Stress, Anxiety & Your Mental Health (this part!)
  2. PhD Motivation: How to Stay Driven From Cover Letter to Completion
  3. How to Stop Procrastinating and Start Studying

For a summary of the key points, you may also like to check out the webinar I presented below on ‘Stress Management During a PhD” for the Biochemical society.


What is PhD Burnout?

Whenever I’ve gone anywhere near social media relating to PhDs I see overwhelmed PhD students who are some combination of overwhelmed, de-energised or depressed.

Specifically I often see Americans talking about the importance of talking through their PhD difficulties with a therapist, which I find a little alarming. It’s great to seek help but even better to avoid the need in the first place.

Sadly, none of this is unusual. As this survey shows, depression is common for PhD students and of note: at higher levels than for working professionals.

All of these feelings can be connected to academic burnout.

The World Health Organisation classifies burnout as a syndrome with symptoms of:

– Feelings of energy depletion or exhaustion;

– Increased mental distance from one’s job, or feelings of negativism or cynicism related to one’s job;

– Reduced professional efficacy.

Symptoms of burnout as classified by the WHO. Source.

This often leads to students falling completely out of love with the topic they decided to spend years of their life researching!

The pandemic has added extra pressures and constraints which can make it even more difficult to have a well balanced and positive PhD experience. Therefore it is more important than ever to take care of yourself, so that not only can you continue to make progress in your project but also ensure you stay healthy.

What are the Stages of Burnout?

Psychologists Herbert Freudenberger and Gail North developed a 12 stage model of burnout. The following graphic by The Present Psychologist does a great job at conveying each of these.

The twelve stages of burnout
Stage 1: Feel strong need to prove yourself
Stage 2: Keep working harder
Stage 3: Neglect own needs
Stage 4: Feel conflicted and blame others
Stage 5: Change values to focus on work
Stage 6: Deny problems that arise due to work stress
Stage 7: Withdraw from social life and family
Stage 8: Behaviour change
Stage 9: Depersonalisation - you do not like yourself
Stage 10: Feel empty and numb
Stage 11: Feel depressed and exhausted
Stage 12: Mental and physical collapse

I don’t know about you, but I can personally identify with several of the stages and it’s scary to see how they can potentially lead down a path to complete mental and physical burnout. I also think it’s interesting that neglecting needs (stage 3) happens so early on. If you check in with yourself regularly you can hopefully halt your burnout journey at that point.

PhDs can be tough but burnout isn’t an inevitability. Here are a few suggestions for how you can look after your mental health and avoid academic burnout.


Overcoming PhD Burnout

Manage Your Energy Levels

Maintaining energy levels day to day

  • Eat well and eat regularly. Try to avoid nutritionless high sugar foods which can play havoc with your energy levels. Instead aim for low GI food. Maybe I’m just getting old but I really do recommend eating some fruit and veg. My favourite book of 2021, How Not to Die: Discover the Foods Scientifically Proven to Prevent and Reduce Disease, is well worth a read. Not a fan of veggies? Either disguise them or at least eat some fruit such as apples and bananas. Sliced apple with some peanut butter is a delicious and nutritious low GI snack. Check out my series of posts on cooking nutritious meals on a budget.
  • Get enough sleep. It doesn’t take PhD-level research to realise that you need to rest properly if you want to avoid becoming exhausted! How much sleep someone needs to feel well-rested varies person to person, so I won’t prescribe that you get a specific amount, but 6-9 hours is the range typically recommended. Personally, I take getting enough sleep very seriously and try to get a minimum of 8 hours.

A side note on caffeine consumption: Do PhD students need caffeine to survive?

In a word, no!

Although a culture of caffeine consumption goes hand in hand with intense work, PhD students certainly don’t need caffeine to survive. How do I know? I didn’t have any at all during my own PhD. In fact, I wrote a whole post about it.

By all means consume as much caffeine as you want, just know that it doesn’t have to be a prerequisite for successfully completing a PhD.

Maintaining energy throughout your whole PhD

  • Pace yourself. As I mention later in the post I strongly recommend treating your PhD like a normal full-time job. This means only working 40 hours per week, Monday to Friday. Doing so could help realign your stress, anxiety and depression levels with comparatively less-depressed professional workers. There will of course be times when this isn’t possible and you’ll need to work longer hours to make a certain deadline. But working long hours should not be the norm. It’s good to try and balance the workload as best you can across the whole of your PhD. For instance, I often encourage people to start writing papers earlier than they think as these can later become chapters in your thesis. It’s things like this that can help you avoid excess stress in your final year.
  • Take time off to recharge. All work and no play makes for an exhausted PhD student! Make the most of opportunities to get involved with extracurricular activities (often at a discount!). I wrote a whole post about making the most of opportunities during your PhD. PhD students should have time for a social life, again I’ve written about that. Also give yourself permission to take time-off day to day for self care, whether that’s to go for a walk in nature, meet friends or binge-watch a show on Netflix. Even within a single working day I often find I’m far more efficient when I break up my work into chunks and allow myself to take time off in-between. This is also a good way to avoid procrastination!

Reduce Stress and Anxiety

During your PhD there will inevitably be times of stress. Your experiments may not be going as planned, deadlines may be coming up fast or you may find yourself pushed too far outside of your comfort zone. But if you manage your response well you’ll hopefully be able to avoid PhD burnout. I’ll say it again: stress does not need to lead to burnout!

Everyone is unique in terms of what works for them so I’d recommend writing down a list of what you find helpful when you feel stressed, anxious or sad and then you can refer to it when you next experience that feeling.

I’ve created a mental health reminders print-out to refer to when times get tough. It’s available now in the resources library (subscribe for free to get the password!).

Below are a few general suggestions to avoid PhD burnout which work for me and you may find helpful.

Get Active

  • Exercise. When you’re feeling down it can be tough to motivate yourself to go and exercise but I always feel much better for it afterwards. When we exercise it helps our body to adapt at dealing with stress, so getting into a good habit can work wonders for both your mental and physical health. Why not see if your uni has any unusual sports or activities you could try? I tried scuba diving and surfing while at Imperial! But remember, exercise doesn’t need to be difficult. It could just involve going for a walk around the block at lunch or taking the stairs rather than the lift.

Relax

  • Cook / Bake. I appreciate that for many people cooking can be anything but relaxing, so if you don’t enjoy the pressure of cooking an actual meal perhaps give baking a go. Personally I really enjoy putting a podcast on and making food. Pinterest and Youtube can be great visual places to find new recipes.
  • Let your mind relax. Switching off is a skill and I’ve found meditation a great way to help clear my mind. It’s amazing how noticeably different I can feel afterwards, having not previously been aware of how many thoughts were buzzing around! Yoga can also be another good way to relax and be present in the moment. My partner and I have been working our way through 30 Days of Yoga with Adriene on Youtube and I’d recommend it as a good way to ease yourself in. As well as being great for your mind, yoga also ticks the box for exercise!
  • Read a book. I’ve previously written about the benefits of reading fiction* and I still believe it’s one of the best ways to relax. Reading allows you to immerse yourself in a different world and it’s a great way to entertain yourself during a commute.

* Wondering how I got something published in Science? Read my guide here.

Talk It Through

  • Meet with your supervisor. Don’t suffer in silence, if you’re finding yourself struggling or burned out raise this with your supervisor and they should be able to work with you to find ways to reduce the pressure. This may involve you taking some time off, delegating some of your workload, suggesting an alternative course of action or signposting you to services your university offers.

Also remember that facing PhD-related challenges can be common. I wrote a whole post about mine in case you want to cheer yourself up! We can’t control everything we encounter, but we can control our response.

A free self-care checklist is also now available in the resources library, providing ideas to stay healthy and avoid PhD burnout.


Top Tips for Avoiding PhD Burnout

On top of everything we’ve covered in the sections above, here are a few overarching tips which I think could help you to avoid PhD burnout:

  • Work sensible hours. You shouldn’t feel under pressure from your supervisor or anyone else to be pulling crazy hours on a regular basis. Even if you adore your project it isn’t healthy to be forfeiting other aspects of your life such as food, sleep and friends. As a starting point I suggest treating your PhD as a 9-5 job. About a year into my PhD I shared how many hours I was working.
  • Reduce your use of social media. If you feel like social media could be having a negative impact on your mental health, why not try having a break from it?
  • Do things outside of your PhD. Bonus points if this includes spending time outdoors, getting exercise or spending time with friends. Basically, make sure the PhD isn’t the only thing occupying both your mental and physical ife.
  • Regularly check in on how you’re feeling. If you wait until you’re truly burnt out before seeking help, it is likely to take you a long time to recover and you may even feel that dropping out is your only option. While that can be a completely valid choice I would strongly suggest to check in with yourself on a regular basis and speak to someone early on (be that your supervisor, or a friend or family member) if you find yourself struggling.

Now you’ve got a good understanding of how to alleviate stresses within your PhD, I’d recommend checking out the second post in my PhD mindset series: PhD Motivation: How to Stay Driven From Cover Letter to Completion.


I really hope that this post has been useful for you. Nothing is more important than your mental health and PhD burnout can really disrupt that. If you’ve got any comments or suggestions which you think other PhD scholars could find useful please feel free to share them in the comments section below.

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