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Diabetes and Stress

Stress has been proven to impact on blood sugar levels. Stress, whether physical stress or mental stress, has been proven to induce changes in blood sugar levels which can be problematic for diabetics.

While stress can affect diabetes control, both directly and indirectly, it can also be caused by various diabetic factors such as being diagnosed with diabetes, adjusting to a diabetes treatment regimen, or dealing with psychosocial pressures of the disease.


Simply out, stress is a state of emotional strain or tension that occurs when we feel that we can't cope with pressure.

When we become stressed, the body quickly responds by releasing hormones that give cells access to stored energy - fat and glucose - to help the body get away from danger. This instinctive physiological response to perceived threats is known as the "fight-freeze, or flight" response.

Over time, both physical and mental stress can wear us down mentally and lead to depression and other mental health issues.

Causes of stress

We live in a very stressful society which is constantly putting us under pressure. This pressure can sometimes be too much to handle, leading us to feel "stressed out".

This everyday feeling can be caused by simple things such as:

  • Work pressure
  • Marriage and relationships
  • Parenting/children
  • Health problems such as diabetes (see below)
  • Financial insecurity
  • Traffic
  • Diabetes causing stress
  • Being told you have diabetes, or any serious chronic condition for that matter, can also cause a lot of stress and pressure.

This can make it harder to control blood sugar levels which, in most cases, only adds to the frustration and stress.

Diabetes affected by stress

It is widely recognised that people with diabetes who are regularly stressed are more likely to have poor blood glucose control.

One of the reasons for this is that stress hormones such as cortisol increase the amount of sugar in our blood. High levels of cortisol can lead to conditions such as Cushing’s syndrome, which is one of the lesser known causes of diabetes.

Constant stress and frustration caused by long term problems with blood glucose regulation can also wear people down and cause them to neglect their diabetes care.

For example, they may start to ignore their blood sugar levels or simply forget to check them, or they may adopt poor lifestyle habits, such as exercising less, eating more 'junk' and processed foods, drinking more alcohol, and smoking. This is known as diabetes burnout.

While stress alters blood sugar levels, the extent of its impact varies from person to person. Studies into the effects of stress on glucose levels in humans have shown that mental or psychological stress causes a rise in glucose levels in people with type 2 diabetes and in most type 1 diabetics, although levels can drop in some individuals with type 1.

Physical stress, such as illness or injury, almost always causes blood sugar levels to elevate in people with either type of diabetes.

How stress is affecting glycemic control?

A simple way to do this is to rate your stress level on a scale of 1 to 10 every time you test your blood sugar levels. Make a note of this number and next to it write down your glucose reading.

By doing this consistently for a few weeks, a pattern should emerge that allows you to see whether high levels of stress coincide with high glucose levels, or vice versa.

Fight-freeze or flight response

The fight-freeze or flight response is an evolutionary coping mechanism enabling us to deal with threats and stressful situations.

When confronted by a threat, hormones are released that help us get ready to either fight the threat or fuel a quick escape. There is an increase in glucose for energy, increased blood pressure to take fresh oxygen to working muscles, and the release of adrenalin for heightened vigilance and alertness.

However, in people with diabetes this instinctive response does not work as well. Hormones is needed to get stored energy (glucose) into the body's cells. But in people who have diabetes, this process is hampered as Hormones is either not produced (as with type 1 diabetes) or not used effectively (type 2 diabetes), resulting in the build-up of excess glucose in the bloodstream.

Dealing with stress

There are a number of ways you can alleviate the feelings of stress. These include:

  • Being Spiritual
  • Taking regular exercise or joining a sports team
  • Going on holiday
  • Listening to music or reading books
  • Practicing yoga and breathing exercises
  • Avoiding junk and processed food
  • Mindfulness meditation and prayers

The ultimate aim of the above tips and activities is relaxation, which has an important role in controlling stress.