Skip to main content

Hemera Technologies/(C) 2005 Hemera Technologies

The question

I am tired all the time, no matter how much sleep I get. What could be causing this?

The answer

Story continues below advertisement

With increasingly busy and stressful work, personal and social lives - everyone experiences low energy or fatigue at times. While you may be getting what seems to be an adequate number of sleep hours, this is just one piece of the energy puzzle.

In general, fatigue is thought to be due to a combination of lifestyle and psychological/medical conditions.

To begin, consider evaluating if there is something in your lifestyle that may be contributing to your tiredness. Lifestyle factors such as dietary choices, sleep behaviors, excessive exercise and stress can all contribute to low energy. For example, while caffeine is a known stimulant - excessive intake can cause withdrawal and in turn cause fatigue.

In terms of diet, caloric intake should equal your energy requirements through a healthy balanced diet. Each individual's requirements vary depending on age, weight, level of fitness and level of activity. Along the same lines, excessive exercise can outstrip your energy stores and lead to fatigue.

While it may seem counter-intuitive to be active when energy is low - regular physical activity (30min/day) has been found to improve energy levels and improve sleep quality.

Finally, your sleep habits are also important to evaluate such as having a regular sleep schedule and getting sufficient hours of sleep. It is important to remember that while the amount of sleep you get may seem adequate - the quality of sleep is just as important to consider.

Certain medications, alcohol and caffeine can effect the depth and quality of sleep, so despite sleeping continuously - it may not be restorative.

Story continues below advertisement

Fatigue can be the hallmark feature of psychological distress or mental health conditions. Along with low mood, low energy is one of the main features of mood conditions such as depression, anxiety and grief. If you are experiencing a change in mood, decreased concentration, increased anxiety or change in your interest to participate in activities you usually enjoy - one of these mental health conditions may be triggering your fatigue.

Also, persistently low energy may be due to a chronic medical condition. There is a wide range of potential conditions that may have fatigue as a key feature including: diabetes, heart disease, thyroid disorder, iron deficiency or anemia, lung disease, cancer, chronic fatigue syndrome and obesity.

Sleep disorders including sleep apnea and restless legs syndrome can effect sleep quality and lead to daytime sleepiness. If in addition to tiredness, you are experiencing alarm symptoms such as weight loss, fever or night sweats - I would strongly urge you to see your doctor to rule out a serious cause.

Send family doctor Sheila Wijayasinghe your questions at doctor@globeandmail.com. She will answer select questions, which could appear in The Globe and Mail and/or on The Globe and Mail web site. Your name will not be published if your question is chosen.

Read more Q&As from Dr. Wijayasinghe.

Click here to see Q&As from all of our health experts.

Story continues below advertisement

The content provided in The Globe and Mail's Ask a Health Expert centre is for information purposes only and is neither intended to be relied upon nor to be a substitute for professional medical advice, diagnosis or treatment.

Report an error Editorial code of conduct
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff.

We aim to create a safe and valuable space for discussion and debate. That means:

  • Treat others as you wish to be treated
  • Criticize ideas, not people
  • Stay on topic
  • Avoid the use of toxic and offensive language
  • Flag bad behaviour

Comments that violate our community guidelines will be removed.

Read our community guidelines here

Discussion loading ...

Cannabis pro newsletter