How can you spot the signs of stress in pregnancy, and what can you do about it? It helps to understand the sympathetic nervous system.
Pregnancy can be a beautiful, life-changing time, but it also brings its share of challenges. Stress in pregnancy is common and can be triggered by hormonal changes, physical discomfort or worries about becoming a parent. The body’s systems, including the sympathetic nervous system (SNS), play a key part in how you respond to and cope with stress.
Let’s look at the sympathetic nervous system, how it affects you in pregnancy, and why managing stress matters for both you and your baby.
Understanding the sympathetic nervous system
The nervous system has two main parts: the central nervous system (the brain and spinal cord) and the peripheral nervous system. Part of the peripheral system, the autonomic nervous system, runs automatically and has two branches: the sympathetic and the parasympathetic nervous systems, each responsible for different responses in the body.
The sympathetic nervous system is often called the “fight or flight” system. When it is activated, it prepares the body to respond to a perceived threat by releasing stress hormones such as adrenaline and cortisol. Your heart beats faster, your breathing quickens and your muscles tense. In pregnancy, emotional, physical or environmental stressors can all trigger this response. The parasympathetic nervous system does the opposite: it is the “rest and digest” system that helps your body calm down.
How stress can affect pregnancy
Short bursts of stress are a normal part of life and won’t harm your baby. However, research suggests that ongoing, severe stress during pregnancy may be linked to:
- Preterm birth: Some studies link high, long-term stress with a slightly higher chance of going into labour early.
- Low birth weight: Chronic stress has been associated with babies being born smaller, which can affect their health.
- Child development: Some studies suggest a link between severe stress in pregnancy and a higher risk of emotional or behavioural difficulties in children.
Signs that stress is building up can include trouble sleeping, irritability, feeling tearful or overwhelmed, headaches, a racing heart or tense muscles. If you are feeling anxious or low most of the time, please talk to your midwife or GP. Support is available.
Managing stress during pregnancy
Here are some techniques you can build into your routine:
- Mindfulness and relaxation: Meditation, slow breathing and guided visualisation help activate the parasympathetic nervous system, promoting relaxation and reducing stress.
- Regular exercise: Physical activity lifts your mood and reduces stress. Try pregnancy yoga, Pilates, walking or swimming.
- A support network: Friends, family and other expectant parents can make a huge difference. Antenatal classes are a great way to meet other parents due at a similar time.
- A healthy lifestyle: A balanced diet, plenty of water and enough rest all help your body cope with stress.
Managing stress is an important part of looking after yourself and your baby. Understanding the role of the sympathetic nervous system, and using simple stress-management strategies, can help you have a calmer, more positive pregnancy. Prioritise self-care and don’t be afraid to ask for support.
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