7 Reasons Why Your Body Feels Heavy And Tired

Interestingly enough, this topic about our bodies feeling heavy and tired has been assigned right around the time when I have been personally experiencing feelings of such “sluggishness.” In my case, it comes down to not exercising as much as I was a year ago, as well as being busier with work. I’m just starting to get back into a training routine after having moved and needing to set up my home gym again at my new house.

Generally speaking, when feeling heavy and tired, it comes down to bioenergetics. Bioenergetics is a field in biochemistry and cell biology that concerns energy flow through living systems.[1] The goal of bioenergetics is to describe how living organisms acquire and transform energy to perform biological work. Essentially, how we acquire, store, and utilize the energy within the body relates directly to whether we feel heavy or tired.

While bioenergetics relates primarily to the energy of the body, one’s total bandwidth of energy highly depends on one’s mental state. Here are seven reasons why your body feels heavy and tired.

1. Lack of Sleep

This is quite possibly one of the main reasons why people feel heavy and/or tired. I often feel like a broken record explaining to people the importance of quality sleep and REM specifically.

The principle of energy conservation states that energy is neither created nor destroyed. It may transform from one type to another. Based on the energy conservation theory, we need sleep to conserve energy. When getting quality sleep, we reduce our caloric needs by spending part of our time functioning at a lower metabolism. This concept is backed by the way our metabolic rate drops during sleep.

Research suggests that eight hours of sleep for human beings can produce a daily energy savings of 35 percent over complete wakefulness. The energy conservation theory of sleep suggests that the main purpose of sleep is to reduce a person’s energy use during times of the day and night.[2]

2. Lack of Exercise

Exercise is an interesting one because when you don’t feel energized, it can be difficult to find the motivation to work out. However, if you do find it in you to exercise, you’ll be pleasantly surprised by its impact on your energy levels. Technically, any form of exercise/physical activity will get the heart rate up and blood flowing. It will also result in the release of endorphins, which, in turn, are going to raise energy levels. Generally speaking, effort-backed cardiovascular exercises will strengthen your heart and give you more stamina.

I’m in the process of having my home gym renovated after moving to a new house. Over the past year, I have been totally slacking with exercise and training. I can personally say that over the last year, I have had less physical energy than I did previously while training regularly. Funny enough I have been a Lifehack author for a few years now, and almost all previous articles were written while I was training regularly. I’m writing this now as someone that has not exercised enough and can provide first-hand anecdotal evidence that exercise begets more energy, period.

3. Poor Nutrition and Hydration

The human body is primarily comprised of water (up to 60%), so naturally, a lack of hydration will deplete energy. According to studies, the brain and heart are composed of 73% water and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.[3] If you don’t consume sufficient amounts of water (and I suggest natural spring water or alkaline water), you will likely have more issues than just a lack of energy.

In regards to nutrition, a fairly common-sense practice is to avoid excess sugar. Consuming too much sugar can harm the body and brain, often causing short bursts of energy (highs) followed by mental fogginess, and physical fatigue or crashes. Generally, sugar-based drinks, candy, and pastries put too much fuel (sugar) into your blood too quickly.

I have utilized these types of foods immediately before training for a quick source of energy. However, outside of that application, there is practically no benefit. When consuming sugar in such a way, the ensuing crash leaves you tired and hungry again. “Complex carbs,” healthy fats, and protein take longer to digest, satisfy your hunger, and thus, provide a slow, steady stream of energy.

4. Stress

Stress is surprisingly overlooked in our fast-paced society, yet it’s the number one cause of several conditions. Feeling heavy and tired is just one aspect of the symptoms of stress. Stress has been shown to affect all systems of the body including the musculoskeletal, respiratory, cardiovascular, endocrine, gastrointestinal, nervous, and reproductive systems.[4] Stress causes the body to release the hormone cortisol, which is produced by the adrenal glands. This can lead to adrenal fatigue, the symptoms of which are fatigue, brain fog, intermittent “crashes” throughout the day, and much more.[5]

It’s important to look at stress thoroughly in life and take action to mitigate it as much as possible. Personally, I spend Monday to Friday in front of dozens of devices and screens and managing large teams (15 to 30) of people. On weekends, I go for long walks in nature (known as shinrin-yoku in Japan), I use sensory deprivation tanks, and I experiment with supplementation (being a biohacker).

5. Depression or Anxiety

These two often go hand in hand with stress. It’s also overlooked much in our society, yet millions upon millions around the work experience symptoms of depression and anxiety. Many that are depressed report symptoms of lack of energy, enthusiasm, and generally not even wanting to get up from bed in the morning.

These are also conditions that should be examined closely within oneself and take actions to make improvements. I’m a big proponent of the use of therapeutic psychedelics, such as Psilocybin or MDMA. I’m an experienced user of mushrooms, from the psychedelic variety to the non-psychedelic. In fact, the majority of my sensory deprivation tank sessions are with the use of various strains of Psilocybin mushrooms. Much research has been coming to light around the benefits of such substances to eliminate symptoms of depression, anxiety, PTSD, and more.[6]

6. Hypothyroidism

Also known as underactive thyroid disease, hypothyroidism is a health condition where the thyroid gland doesn’t produce sufficient levels. This condition causes the metabolism to slow down.[7] While it can also be called underactive thyroid, hypothyroidism can make you feel tired and even gain weight. A common treatment for hypothyroidism is hormone replacement therapy.

7. Caffeine Overload

I’m writing this as someone that went from five cups of coffee a day to now three cups a week! I’ve almost fully switched to decaf. The reason I stopped consuming so much coffee is that it was affecting my mood and energy levels. Generally, excessive consumption of caffeine can also impact the adrenal gland, which, as I covered above, can almost certainly lead to low energy and random energy crashes.

Final Thoughts

The most important thing is to identify that you feel heavy or tired and take action to improve the situation. Never fall into complacency with feeling lethargic or low energy, as human beings tend to accept such conditions as the norm fairly quickly. If you’ve made it this far, you’re on the right path!

Examine various aspects of your life and where you can make room for improvement to put your mental, emotional, and physical self first. I certainly hope these seven reasons why your body feels heavy, tired, or low on energy can help you along the path to a healthy and more vibrant you.

More Tips on Restoring Energy

  • Why You Shouldn’t Ignore Your Fatigue Symptom (& How to Boost Energy)
  • Do Vitamins and Supplements Help With Energy?
  • How Physical Inactivity Affects Your Energy Levels

Reference

Nature: Bioenergetics
Healthline: What Is the Purpose of Sleep?
USGS: The Water in You: Water and the Human Body
American Psychological Association: Stress effects on the body
endocrineweb: What Exactly Is Adrenal Fatigue?
Healthline: Can a Psilocybin Mushroom Trip Really Help Ease Anxiety?
endocrineweb: Hypothyroidism: Overview, Causes, and Symptoms

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I love my sleep. I always make sure to get at least eight hours each night. I’ll even leave parties early so I can get to bed at my usual time Yet, there are still mornings when I wake up feeling exhausted, even after a great night’s sleep. Whenever that happens, I run through a mental checklist, grasping at straws to explain to myself why I feel so groggy: why do I feel exhausted? Did I drink too much last night? Did I stay up past my usual bedtime? Did I hit snooze on my alarm twelve times? Eight hours of sleep a night shouldn’t result in chronic exhaustion, right?

Regardless of how much quality sleep you’re getting, you can still feel mentally exhausted, burnt out, run-down, worn through—whatever you want to call it. Most of the time, you’re so exhausted you don’t even have the time or the sense to see it clearly.

The answer is right in front of your face, but you haven’t had a chance to step back and analyze your situation. Maybe you hate your job, or you’re worried about paying rent, but you’re not actively thinking about it. How could you with all that’s going on? It’s planted in your subconscious, lurking there and eating away at your morale.

That worn-down feeling is a cumulative combination of unconsidered stressful circumstances—an amalgamation of past worries and future anxieties. We aren’t talking about your regular physical exhaustion from a long day’s work standing on your feet. This is purely in between your ears. You’re overstimulated, and it’s dragging you down. But what’s the real reason behind this brain fog? Why do you feel exhausted?

The first place to look at is stress,[1] which is the body’s natural response to a new challenge or demand. Where are you currently experiencing stress in your life?

Most pain, exhaustion, or emotional fatigue is the direct result of stress. Daily life is filled with tiny stressors—running to catch the morning bus, praying you’ll find a parking spot, or worrying about the leak in your ceiling at home. As these small stressors pile on uncontrollably, you realize you’re white-knuckling through the day.

Mental exhaustion,[2] simply put, is long-term stress. It’s having a day like the above over and over again for months on end until it weighs so much it finally drags you to the ground. You can’t keep living like this.

You may have experienced this in the form of a “mid-life crisis,” or even a quarter-life crisis where you stop and realize you never pursued the things you once hoped and dreamed of. Life passed you by in the blink of an eye. What happened to the “purpose” you once wanted to get out of life? Maybe you wanted to be an artist and all of a sudden, you look down and you’re forty-three years old sitting in a conference room surrounded by suits and boring charts.

You’re faking your way through life and you’re tired of putting on an act.

Why Do You Feel Exhausted?

“Depression, anxiety, phobias… so many things can be disguised in a way that gives a facade of normalcy over a person’s internal struggles.”

There are many reasons why you may be feeling exhausted. There may be times when you had complete hours of sleep yet ask yourself after waking up: why do I still feel exhausted?

Why? It’s because there are other possible reasons for this exhaustion other than improper or lack of sleep. Here are some reasons why you feel exhausted.

1. High-Pressure Occupation (emergency responders and teachers)

Working in a highly stressful scene like an ER or police department is an obvious input for stress. Long hours on the job and making high-level decisions in crisis mode need to be followed by a period of rest, relaxation, and debriefing.

2. Working Long Hours

Consistently clocking in 12-14 hour days for weeks on end can drag you down. Many occupations require this type of work seasonally, like accountants during tax season. But when you’re spending that much time at week year-round and there is no end in sight, mental exhaustion can become chronic.

3. Financial Stress

For obvious reasons, being in troubled circumstances with your finances can cause long-term stress and constant worries, which lead to feeling exhausted. How can you enjoy life if you can’t afford to do the things you enjoy? No matter how much you sleep, you will still feel exhausted if something is troubling you at the back of your mind like financial problems.

4. Dissatisfied With Your Job

When you ask yourself, “why do I feel exhausted?” Try also asking, “Am I satisfied with my job?”

Many people slog through life in a job they hate. Whether it’s your unruly boss, the team that you work with, or the customers who you’re sick of hearing complaining, being stuck in a dissatisfying job can cause feelings of resentment in work and your personal life.

5. Clutter

Whether you’re naturally a messy person or life has become so frantic that you haven’t even had a chance to clean or organize, clutter plays a massive part in mental exhaustion. Having a clear workspace and a calm environment to walk into makes a difference in mental clarity. This can also affect your productivity and your attitude towards your job.

6. Avoidance and Procrastination

When you feel exhausted, it may be because something at the back of your head is troubling you. You may have some responsibilities that you should be doing or have done but still have not. Putting things off too long will cause hidden stress to climb on top of you like a monkey on your back. Avoiding your responsibilities and procrastinating are some of the possible causes as to why you feel exhausted.

7. Living With Chronic Pain or an Illness

Going through life with stress is hard enough. Add on top of that something like chronic back pain or a congenital condition and it’s like taking care of two separate people for yourself. This can also cause feelings of resentment, bitterness, and irritation around people you love, even those who support and take care of you.

8. Death of a Loved One

Losing a close friend or family member is something everyone has experienced, and it never gets easier. Many people try to play tough and portray to their loved ones that they are okay and dealing with it just fine. But the reality is that it’s weighing them down.

Be honest with yourself about it, and have someone you can talk to. Experiencing your grief alone and not sharing it with anyone may be the reason why you feel exhausted.

9. Lack of Purpose

Life needs to have a purpose. Every individual has a purpose that is entirely unique to their circumstance. It can be guided by religion, occupation, or an ultimate life goal to strive towards, such as writing a book or owning a business. Without an ultimate purpose, it’s easy to let yourself slip into a depression that leads to mental exhaustion.

What Should You Do When You Feel Exhausted?

“When you’re struggling with something, look at all the people around you and realize that every single person you see is struggling with something, and to them, it’s just as hard as what you’re going through.”

1. Talk About It

It may sound obvious, but talking through these struggles with someone is a form of therapy in itself. Chances are, someone has been through the same type of thing that you’re going through right now. Don’t hide it. Open up and learn how others dealt with it. It’s more common than you think.

2. Find an Outlet or a Hobby

One way to help find joy out of a life of exhaustion is to come home to a hobby. Unwind from the workday by doing something you love that’s also a bit challenging. Learn how to play guitar, play video games with your kids, read a book, or learn new recipes to cook for your family. Take your mind away from whatever it is you’re worried about. Focus entirely on the process and get out of your anxiety.

3. Be Realistic

You can’t do everything. Look at your schedule, and be honest with yourself and the people around you about what’s possible for one person to do in a day. You can’t change the world alone. Enlist the help of others and don’t be too proud to ask. Putting the weight of the world on your shoulders may be the reason why you feel exhausted.

4. Arrive Early

It took me years in life to realize how much being early can relieve stress. Waking up five minutes earlier gives me five minutes to relax and think if I’m forgetting anything before I head out the door. Leaving five minutes before I normally would for an event gives me five minutes to arrive and get a good seat, scope out the scene, or talk to someone and learn something about the place.

Being early allows you to be relaxed and completely comfortable as opposed to running through life in a hurry. Settle in before anyone else and have the mental edge that you’re prepared for anything.

5. Exercise More, Try Healthier Habits

Exercise is probably the last thing you want to do. But have you ever regretted a workout? One hundred percent of the time it makes you feel better and gives you the momentum to have a great day.

Try healthier habits. Go for a walk right when you get out of bed. Try a new vegetable once a week. Drink more water. Stand more. Replace dessert with fruit. If you drink ten cups of coffee a day, try to go one day a month without coffee. Healthier habits ultimately lead to a happier life in more ways than you think.

6. Journal

Similar to talking about your problems, journaling is an excellent outlet for not only getting the thoughts out of your head but also to clarify your feelings. As you write, you’ll realize you actually didn’t understand what you were thinking. Writing helps that. Do it often.

7. Take Care of Something

Get a pet. If you’re not ready for a dog, then buy a few plants to take care of. This takes the attention off yourself and on to something that relies on you for livelihood. It will help put everything in perspective and relieve stress and exhaustion.

8. Meditate

This is such an overly-used cure-all, but meditation really does help with clarity of thinking and developing a sense of calm in your life. Researchers found that meditation “decreased symptoms of stress, anxiety, and depression.[3]

It doesn’t have to be sitting with your legs cross, fingers in a circle, and saying “Oooommmmmm.” Meditating can take on whatever form you’re comfortable with. It can be taking a few deep breaths before you step out of your car, or it can be closing your eyes and thinking of your loved ones when you’re having a hard time.

Sometimes before bed, I’ll just close my eyes and envision a future I want for myself. I picture the people I love hugging me and saying “Congratulations.” For what? I don’t know, but I’m putting myself in the mindset to succeed.

Final Thoughts

Dr. Alice Boyes, author of The Healthy Mind Toolkit:[4]

“The more you work on systems for reducing stress and excess decision-making, the more mental energy you’ll have.”

This is true in so many areas. Work on habits and routines that will eliminate the number of decisions you make. The more disciplined you are in these areas, the more freedom you will have to do the things you truly want and need. But also, understand how you are getting in your own way.

Author Tim Ferriss likes to ask himself, “How am I complicit in creating the conditions I say I don’t want?” or “What are the stories I tell myself that interfere with self-love?”

Take a look at the actions and routines you structure your life around. Are there small tweaks you can make to get out of your own way? What would this look like if it were easy? Sometimes, asking yourself questions like these can lead to surprisingly simple solutions and answer the question of “why do I feel exhausted?”

As I said, everyone is struggling in their own way. How you manage your stress may differ completely from someone else. By being vulnerable and understanding that you have the ability to overcome this exhaustion, you can begin to find meaning. Exercise consistent positive habits and the momentum will attract more positive momentum. Oh, and get good sleep!

More Tips to Help You When You Feel Exhausted

  • 6 Things You Can Do When You’re Mentally Exhausted
  • 9 Energy Hacks to Stay Motivated When You’re Exhausted
  • Why Am I Exhausted? The Real Causes and How to Fix It Forever

Reference

Medline Plus: Stress and your health
Healthline: How to Treat and Prevent Mental Exhaustion
TEBI: Everyone’s Struggling With Something
Forbes: How To Overcome Mental Fatigue, According To An Expert

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