Reduce Your Sedentary Behaviour

Living a sedentary lifestyle can be dangerous to your health. The less sitting or lying down you do during the day, the better your chances of living a healthy life. Reduce Your Sedentary Behaviour.

If you stand or move around during the day, you have a lower risk of early death than if you sit at a desk. If you live a sedentary lifestyle, you have a higher chance of being overweight, developing type 2 diabetes or heart disease, and experiencing depression and anxiety.

How does a sedentary lifestyle behaviour affect your body?

Humans are built to stand upright. Your heart and cardiovascular system work more effectively that way. Your bowel also functions more efficiently when you are upright. It is common for people who are bedridden in a hospital to experience problems with their bowel function.

When you are physically active, on the other hand, your overall energy levels and endurance improve, and your bones maintain strength.

Legs and gluteals

Sitting for long periods can lead to weakening and wasting away of the large leg and gluteal muscles. These large muscles are important for walking and for stabilizing you. If these muscles are weak you are more likely to injure yourself from falls, and from strains when you do exercise.

Stiff neck and shoulders

If you spend your time hunched over a computer keyboard, this can lead to pain and stiffness in your neck and shoulders.

Weight

Moving your muscles helps your body digest the fats and sugars you eat. If you spend a lot of time sitting, digestion is not as efficient, so you retain those fats and sugars as fat in your body.

Even if you exercise but spend a large amount of time sitting, you are still risking health problems, such as metabolic syndrome. The latest research suggests you need 60–75 minutes per day of moderate-intensity activity to combat the dangers of excessive sitting.

Heart disease

Sitting for long periods has been linked to heart disease. One study found that men who watch more than 23 hours of television a week have a 64 percent higher risk of dying from cardiovascular disease than men who only watch 11 hours of television a week.

Some experts say that people who are inactive and sit for long periods have a 147 percent higher risk of suffering a heart attack or stroke.

Varicose veins

Sitting for long periods can lead to varicose veins or spider veins (a smaller version of varicose veins). This is because sitting causes blood to pool in your legs.

Varicose veins aren’t usually dangerous. In rare cases, they can lead to blood clots, which can cause serious problems (see deep vein thrombosis, below).

Anxiety and depression

We don’t understand the links between sitting and mental health as well as we do the links between sitting and physical health yet, but we do know that the risk of both anxiety and depression is higher in people that sit more.

This might be because people who spend a lot of time sitting are missing the positive effects of physical activity and fitness. If so, getting up and moving may help.

Cancer

Emerging studies suggest the dangers of sitting include increasing your chances of developing some types of cancer, including lung, uterine, and colon cancers. The reason behind this is not yet known.

Diabetes

Studies have shown that even five days lying in bed can lead to increased insulin resistance in your body (this will cause your blood sugars to increase above what is healthy). Research suggests that people who spend more time sitting have a 112 percent higher risk of diabetes.

Deep vein thrombosis

Sitting for too long can cause deep vein thrombosis (DVT), for example on a long plane or car trip. Deep vein thrombosis is a blood clot that forms in the veins of your leg.

DVT is a serious problem because if part of a blood clot in the leg vein breaks off and travels, it can cut off the blood flow to other parts of the body, including your lungs, which can cause a pulmonary embolism. This is a medical emergency that can lead to major complications or even death.

Hips and back

Just like your legs and gluteals, your hips and back will not support you as well if you sit for long periods. Sitting causes your hip flexor muscles to shorten, which can lead to problems with your hip joints.

Sitting for long periods can also cause problems with your back, especially if you consistently sit with poor posture or don’t use an ergonomically designed chair or workstation. Poor posture may also cause poor spine health such as compression in the discs in your spine, leading to premature degeneration, which can be very painful.

Build more activity into your sedentary day

Some ways you can incorporate activity into your day are:

  • Walk or cycle, and leave the car at home.
  • For longer trips, walk or cycle part of the way.
  • Use the stairs instead of the lift or escalator, or at least walk up the escalator.
  • Get off the bus one stop early and walk the rest of the way.
  • Park further away from wherever you’re going and walk the rest of the way.
  • Calculate how long it takes you to walk one kilometer – you may find you can reach your destination faster by walking than if you wait for public transport.

Be active, not sedentary.

If you’re new to physical activity, or if you have a health condition, speak to your doctor before you start any new activities. They can help you decide the best activities for you. Read more about physical activity and how to get started.

Search for your local Registered Exercise Professional or Registered Fitness Business for professional advice and ongoing support. If you’re getting active outdoors, remember to protect yourself from the sun by applying sunscreen and wearing sun-protective clothing, including a hat.

Reduce Your Sedentary Behaviour.