Mental wellbeing

How are physical and mental health connected?

Your body and mind affect each other. Being active, eating well, sleeping well and managing stress all support both your physical and mental health.

  • Last reviewed 2 October 2026
  • 4 minute read
  • First published 23 July 2024
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On this page
  1. How are physical and mental health linked?
  2. How does exercise help your mental health?
  3. Does what you eat affect how you feel?
  4. Why does sleep matter so much?
  5. How does stress affect your body?
  6. When should you get support?
  7. Common questions

Key points

  • Physical and mental health are closely linked. Each affects the other.
  • Regular activity can help lift your mood and ease stress.
  • Diet, sleep and stress all play a part in how you feel, body and mind.
  • If low mood or anxiety is affecting your daily life, speak to your GP.

How are physical and mental health linked?

It is easy to think of physical and mental health as separate, but they are closely connected. When you feel stressed or low, you may sleep badly, eat differently, move less and feel aches or stomach problems. When you are physically unwell, especially with a long term condition, it can affect your mood and outlook.

The connection works in a positive direction too. Looking after your body is one of the most effective ways to look after your mind, and feeling mentally well makes it easier to keep up healthy habits.

How does exercise help your mental health?

Being active is one of the best things you can do for your mood. The NHS says regular exercise can boost your mood if you have depression, especially if it is less severe, and that even a brisk 10 minute walk can clear your mind and help you relax. Some GP surgeries prescribe exercise as part of treatment for depression. The mental health charity Mind adds that being active can help you manage stress, sleep better, and feel more confident.

You do not need a gym membership to feel the benefits. Walking, swimming, cycling, dancing, yoga, gardening and playing games with your children all count. The best activity is the one you enjoy and will keep doing.

Does what you eat affect how you feel?

Your diet affects your energy, concentration and mood. Mind explains that when your blood sugar drops you may feel tired, irritable or low, and that slow-release foods such as wholegrain bread, nuts and brown rice help keep your energy steady. Not drinking enough can affect how clearly you think, and too much caffeine can make you feel anxious and disturb your sleep.

There is also a link between your gut and your mood, which you can read about in our guide to gut health.

Why does sleep matter so much?

Sleep is when your body and brain recover. According to Mind, poor sleep can make you more likely to feel anxious or low, and make it harder to concentrate and cope with everyday stress. That can turn into a cycle, where worry keeps you awake and tiredness makes worry harder to manage. A regular routine, a calm bedroom and less screen time before bed can all help. Our sleep guide has more practical tips.

How does stress affect your body?

Stress is a normal reaction to pressure, but it affects your body as well as your mind. The NHS lists physical symptoms of stress including headaches or dizziness, muscle tension or pain, stomach problems, and chest pain or a faster heartbeat.

Finding ways to switch off makes a difference. That might be exercise, time outdoors, a hobby, mindfulness, breathing exercises, or simply talking to someone you trust.

When should you get support?

If low mood, worry or stress is affecting your daily life, speak to your GP. In England, you can also refer yourself to NHS talking therapies for problems such as anxiety and depression, without seeing a GP first. If you need help urgently, call NHS 111 and choose the mental health option, or call Samaritans free on 116 123, day or night.

Common questions

How much exercise helps your mental health?

Any activity helps. The NHS recommends adults aim for at least 150 minutes of moderate activity a week, and says even a brisk 10 minute walk can clear your mind and help you relax. Doing something you enjoy makes it easier to keep going.

Can physical illness affect your mental health?

Yes. Living with a long term physical condition can be hard, and it can affect your mood. If you have a health condition and are feeling low or anxious, tell your GP or care team, as support for your mental health can also help you manage your condition.

What is the quickest way to feel better when stressed?

Short, simple actions can help in the moment, such as a few minutes of slow breathing, a walk outside or talking to someone. For lasting change, regular exercise, good sleep and dealing with the causes of stress make the biggest difference.

Sources

  1. Exercise for depression. NHS.
  2. About physical activity and your mental health. Mind.
  3. About food and mood. Mind.
  4. About sleep and mental health. Mind.
  5. Stress. NHS.
  6. NHS talking therapies. NHS.
  7. Where to get urgent help for mental health. NHS.

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