Exercise and mental health

Why it seems to help

There is no single mechanism. Several things appear to work together:

• Stress response: exercise is a controlled stress, and regular training seems to help the body cope better with other stresses.
• Brain chemistry: physical activity affects chemicals involved in mood and motivation.
• Sleep: regular activity usually improves sleep, and better sleep improves almost everything else.
• Mastery: getting better at something, such as lifting a heavier weight or rowing further, builds confidence that spills into other parts of life.
• Structure: a routine gives shape to the week, which helps on days when everything else feels shapeless.
• Connection: training with others brings conversation, belonging and people who notice when you are missing.

That last point is easy to underestimate. Loneliness takes a real toll on wellbeing, and a group of familiar faces you see several times a week can matter more than any individual workout.

It also helps to know that you do not need to feel motivated to benefit. Many people start a session feeling flat and finish it feeling noticeably better. Waiting to feel like it before you move often means waiting a long time.

How much do you need?

Less than you might think. Even a brisk 10 to 20 minute walk can lift mood in the short term. For longer-term benefits, the UK Chief Medical Officers' guidelines are a sensible target: 150 minutes of moderate activity a week plus strength work on two days. Both aerobic exercise and strength training appear to help.

Intensity matters less than consistency and enjoyment. Benefits show up with moderate activity, and forcing yourself through sessions you hate is unlikely to do much for your mood. Choose something you can look forward to, or at least not dread.

Timing can help, too. Some people find a morning session sets a better tone for the whole day, while others use an evening class to draw a line between work and home. There is no right answer. Notice when training leaves you feeling best, and protect that slot.

When exercise makes things harder

Exercise is usually a positive force, but it can sometimes become part of a problem. Warning signs include feeling unable to rest, training through illness or injury out of guilt, exercising to burn off food, or real distress when a session is missed. If that sounds familiar, speak to your GP, as these patterns can be linked to disordered eating or other difficulties.

Too much hard training with too little recovery can also leave you tired, irritable and low. If you are training hard and your mood, sleep and motivation are all heading downhill, the answer may be more rest rather than more effort. Our guide to stress and recovery explains how life stress and training stress add up.

And if the gym environment itself makes you anxious, that is common and very workable. Our guide to gym anxiety has practical steps for the first few visits.

Building it into your week

The hardest part is often starting, especially when mood is low and energy is scarce. Make it as easy as possible: fixed times, a bag packed the night before, a friend or class expecting you. Our guide to building a fitness habit covers the practical side.

Get outside when you can. Walking in daylight, particularly in the morning, can help regulate sleep and mood, and time in green space seems to add a little extra benefit. Across Greater Manchester there are parks, canal towpaths and country parks within reach of most people.

Protect your sleep, too. Some people find very hard training late in the evening makes it harder to wind down. If that is you, see our guide to sleep for recovery and consider moving your harder sessions earlier.

Getting the right support

Exercise works best as part of a wider plan. If low mood, anxiety or stress have been affecting your daily life for more than a couple of weeks, speak to your GP. In England you can also refer yourself to NHS talking therapies for common problems such as anxiety and depression.

If you feel you might harm yourself or you are in crisis, get help now:

• Call 999 or go to A&E if you are in immediate danger
• Call NHS 111 and choose the mental health option
• Call Samaritans free on 116 123, any time of day or night

Community can be part of the support. At Lycan Strength, members of all ages and levels train together, and in any gym that sense of turning up and being known can be as valuable as the training itself.