Six self-help tips for Seasonal Affective Disorder (SAD )

Lead CBT therapist at Bupa
03 October 2025
Next review due October 2028

As we head into the winter months, it’s understandable if you’re worried about your mental health and wellbeing. Some people get a type of depression that can get worse in the winter - seasonal affective disorder (SAD). Not everyone gets SAD, but here I’ll explain what it is and offer some tips to help you cope over the coming months.

Family walking in the woods

What is Seasonal Affective Disorder (SAD)?

Seasonal affective disorder (SAD) is a type of depression that usually happens at the same time of year. It’s thought that changes during autumn and winter, such as fewer hours of daylight, can negatively impact your mood. The darker days can disrupt your body’s internal ‘clock’ and affect the parts of your brain that make mood-regulating hormones, such as serotonin and melatonin. Seasonal affective disorder is sometimes called seasonal depression, winter blues, or winter depression.

What are the symptoms of Seasonal Affective Disorder (SAD)?

The main symptoms of SAD include:

  • having trouble waking up, and sleeping more than usual
  • feeling tired and lethargic
  • feeling more hungry than usual and craving carbohydrates
  • gaining weight
  • finding it hard to stay connected with family and friends
  • feeling anxious, irritable, and experiencing low mood
  • difficulty concentrating or making decisions
  • losing interest in sex
  • feeling heavy, sluggish and moving slowly
  • feeling helpless or having suicidal thoughts

SAD symptoms often get better during the spring and summer months.

How can Seasonal Affective Disorder (SAD) be treated?

It’s not completely clear what happens when you have SAD – more research is needed so that doctors can direct people to the best possible treatments. Some people find that light therapy helps to ease their symptoms. This involves using an artificial lightbox to mimic the effects of sunlight during the darker winter months. You can buy a SAD light box or SAD lamp to use, however you should speak to your doctor first for advice. Other treatment options for seasonal affective disorder are the same as those used for other forms of depression, such as cognitive behavioural therapy (CBT) and antidepressants.

What helps with Seasonal Affective Disorder (SAD)?

There are some things you can try yourself to help with SAD symptoms. Even if you don’t have SAD, these tips can help you look after yourself during the winter months. Here are six simple ideas to help you get started.

1. Get outside during daylight

If the decrease in daylight hours is affecting your mood, try to make the most of them and get outside when you can. Even a cloudy day will provide your body with the light it’s craving. So, whether it’s the first thing you do when you get up in the morning, or something you fit into your lunch break, wrap up warm and head out into the great outdoors.

2. Brighten up your environment

If you work indoors, try to let as much sunlight into your working environment as possible. Open any curtains or blinds and sit by a window if you can.

As well as making your environment bright, you could also try bringing the outside world in with some indoor plants to help you feel a bit closer to nature.

3. Eat well

It’s important to eat a healthy, balanced diet to make sure your brain gets everything it needs to function properly. Try to eat little and often and drink enough water throughout the day to help keep your brain energised and hydrated. Avoid drinking alcohol too, as this can make you feel worse.

4. Exercise (outdoors – if you can!)

Doing regular physical activity can help with low mood as well as improve your physical health. Exercise is recommended for depression because it can help with mental wellbeing. Exercise can also help to improve your sleep. So, getting outside and moving if you’re feeling low can help to take your mind off things and lift your mood. It doesn’t have to be too intense – go for a walk, gentle jog or cycle if you feel up to it.

5. Keep a diary

It can sometimes help to keep a diary of your symptoms (either on paper or using an app on your phone). Taking notes of how you’re feeling can help you notice any patterns. This could help you to understand what makes you feel better, and what makes you feel worse.

6. Plan ahead

If you recognise patterns of feeling low, it can help to plan ahead for those difficult days. This might involve stocking up on things you need, and freezing meals in case you don’t have energy to cook. You might also think about rearranging meetings or events for another time or planning some relaxing activities.

Where to get help for seasonal affective disorder (SAD)

If you think you might have SAD, contact a GP. Getting professional help when you need it is really important. Your GP will be able to look at your personal situation and suggest treatment options that are right for you.

If your mood is very low or you’re having suicidal thoughts, call the Samaritans helpline on 116 123 (UK and ROI) to talk to someone immediately.


If you’re worried about your mental health, our direct access service aims to provide you with the advice, support and treatment you need as quickly as possible. You’ll be able to get mental health advice and support usually without the need for a GP referral. Learn more today.

Nicola Shepherd
Lead CBT therapist at Bupa

 

Co-author

Lucy Kapoutsos, Health Content Editor at Bupa UK

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    • Melrose S. Seasonal affective disorder: an overview of assessment and treatment approaches. Depress Res Treat 2015; 2015:178564.
    • Seasonal affective disorder. Royal College of Psychiatrists. rcpsych.ac.uk, accessed September 2025.
    • Seasonal Affective Disorder (SAD). Mental Health Foundation. Mentalhealth.org.uk, accessed September 2025.
    • Depression in adults: treatment and management. National Institute for Health and Care Excellence (NICE). nice.org.uk, published June 2022
    • Seasonal affective disorder (SAD). Self care. Mind. mind.org.uk, published September 2025.
    • Food fact sheet: depression and diet. The Association of UK Dietitians. bda.uk.com, published April 2020.

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