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YOU MAY HAVE LOW BLOOD SUGAR Low blood sugar (hypoglycemia) is a common reason people feel dizzy during or after exercise, Milton says. Because blood sugar (also known as blood glucose) is your brain’s primary source of energy, running low on this fuel can interfere with its ability to function, according to Harvard Medical School. Possible reasons for feeling dizzy after a workout include: 1. Overexertion. Share on Pinterest. Overexertion may cause a person to feel dizzy after a workout.

Boxing Legends TV Recommended for you 18:51 Bass Boosted Mix �� Car Music Mix 2019 �� Best EDM, Bounce, Electro House 24/7 Bass Dropper Car & Bass Music 2,003 watching. It’s common to feel light-headed when you stand too quickly from lying down or sitting, and after exercise. Fainting or dizzy spells can occur from a simple shift in body positioning that pulls. You Have Low Blood Sugar One of the primary reasons you may feel dizzy both during and after exercise is because of low blood sugar, says Dr. Morrison. (P.S. here are seven other strange side effects you could be experiencing after a workout.).

One of the common causes of feeling faint after a workout is simply overexerting yourself. Pushing your body too hard can result in your heart working too hard and not getting enough blood to your head. You may also feel dizzy if you haven’t been hydrating your body during exercise or have been exercising in the heat.

I went to the gym last night as usual for the 2nd time this week, had a bottle of lucozade light and 2 pints of water during/after the workout. I have eaten breakfast and lunch and done an hour or so housework but I came over all dizzy about an hour ago. I’ve since had another drink, two biscuits and a banana (in case it was dehydration or sugars). Finally, dizziness during a workout could signal an underlying heart problem, one of which is an abnormal rhythm, called an arrhythmia.

There are. Some medicines, including the ones used to maintain blood pressure, can cause dizziness and lightheadedness especially after a workout. 3. Blood Pressure Dropping.

During exercise, the heart works harder and pumps more blood into the blood vessels, and the blood vessels then dilate to accommodate this extra blood. Improper hydration before or after your workout can result in the body not having enough liquids, which hinders its optimal function. Dehydration causes dizziness, headaches, and a dry mouth.

Drinking before, during and after exercise will help you avoid dehydration episodes.

List of related literature:

Many types of strenuous exercise increase the blood supply to the leg muscles; suddenly stopping these intense muscular movements can cause blood to accumulate in the leg veins, which can reduce the blood flow to the brain, causing dizziness, faintness, or loss of consciousness.

“Essential Concepts for Healthy Living” by Sandra Alters, Wendy Schiff
from Essential Concepts for Healthy Living
by Sandra Alters, Wendy Schiff
Jones & Bartlett Learning, 2009

If you don’t eat before you exercise, you can wind up feeling light­headed; you may even experience fatigue and nausea.

“The Glycemic Index Diet For Dummies” by Meri Raffetto, RD, LDN
from The Glycemic Index Diet For Dummies
by Meri Raffetto, RD, LDN
John Wiley & Sons, 2010

Athletes who avoid fluids intentionally or unintentionally before training sessions or competitive events tend to fatigue quickly, complain of dizziness or faintness, demonstrate a faster rise in core body temperature, have increased heart rates and perceived levels of exertion, and perform suboptimally.”

“Practical Applications in Sports Nutrition” by Heather Hedrick Fink, Lisa A. Burgoon, Alan E. Mikesky
from Practical Applications in Sports Nutrition
by Heather Hedrick Fink, Lisa A. Burgoon, Alan E. Mikesky
Jones and Bartlett Publishers, 2006

Collapse may occur either at rest or during exercise and may be preceded by weakness or faintness, confusion, anxiety, ataxia, vertigo, headache, and nausea or vomiting.

“Medical Phisiology: Principles for Clinical Medicine” by Rodney A. Rhoades, David R. Bell
from Medical Phisiology: Principles for Clinical Medicine
by Rodney A. Rhoades, David R. Bell
Wolters Kluwer Health/Lippincott Williams & Wilkins, 2012

Dehydration also occurs in hot, humid conditions during exercise and can lead to nausea, muscle cramps, and other effects.

“Pocket Companion to Guyton & Hall Textbook of Medical Physiology E-Book” by John E. Hall
from Pocket Companion to Guyton & Hall Textbook of Medical Physiology E-Book
by John E. Hall
Elsevier Health Sciences, 2011

As there is essentially an unlimited amount of bodyfat to provide energy, fatigue during this type of exercise is caused by dehydration, boredom and hypoglycemia (22,52).

“The Ketogenic Diet: A Complete Guide for the Dieter and Practitioner” by Lyle McDonald, Elzi Volk
from The Ketogenic Diet: A Complete Guide for the Dieter and Practitioner
by Lyle McDonald, Elzi Volk
Lyle McDonald, 1998

These are all common signs of dehydration and unless you are at the very end of your workout your exercise performance is going to be negatively affected.

“Essentials of Exercise & Sport Nutrition: Science to Practice” by Richard B. Kreider PhD FACSM FISSN FNAK
from Essentials of Exercise & Sport Nutrition: Science to Practice
by Richard B. Kreider PhD FACSM FISSN FNAK
Lulu Publishing Services, 2019

Dizziness during the exercises is probably a symptom of hyperventilation, i.e. the exercises are being performed too deeply or too quickly.

“Relaxation Techniques E-Book: A Practical Handbook for the Health Care Professional” by Rosemary A. Payne, Marie Donaghy
from Relaxation Techniques E-Book: A Practical Handbook for the Health Care Professional
by Rosemary A. Payne, Marie Donaghy
Elsevier Health Sciences, 2010

When you finish your exercise, you may feel dizzy, “hot-headed,” or top—heavy.

“The Intuitive Way: The Definitive Guide to Increasing Your Awareness” by Penney Peirce
from The Intuitive Way: The Definitive Guide to Increasing Your Awareness
by Penney Peirce
Atria Books/Beyond Words, 2009

‘ Nausea or vomiting after exercise.

“Fitness cycling” by Brian J. Sharkey, Steven E. Gaskill
from Fitness cycling
by Brian J. Sharkey, Steven E. Gaskill
Human Kinetics, 2013

Alexia Lewis RD

Registered Dietitian Nutritionist and Certified Heath Coach who believes life is better with science, humor, and beautiful, delicious, healthy food.

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  • Had to get off the ice today because i was about to pass out. Didnt understand what was happening. Then realized i havent played hockey in 4 months

  • This just happened to me after doing a 3 mile jog. I haven’t worked out in about 5 months and I decided to go for a run. I decided about half way to stop and take a breath when all of a sudden I started feeling extremely weak, dizzy, and I got a gnarly headache to go with it all at once. I had to lay down and I honestly thought that I was going to pass out. It was pretty terrifying ngl. Also the fact that I haven’t been sleeping well these past few days may also be a problem

  • I just ran 7 K today for the first tine after runnning 6 K the whoke week. I just felt lightheaded after the run and performing 30 reps of push ups and crunches. What should I do?

  • This was very helpful. I’m not sure if I have low blood pressure; its
    quite possible. I’ve had a few near fainting moments during hikes for the past year. Each time I push myself I get to a point where I’m very out of breath, Heart racing, eyes lids feeling heavy and body feeling too heavy for me to stand or sit upright. I thought I was pushing myself too hard, maybe the elevation up in the mountains or dehydration but these other tips youyou gave about stopping suddenly may be relevant as well. Thanks ����

  • First I feel really dizzy and my vision gets purple and then after as it’s going away my head burns for about three seconds and it started when I started working out

  • So i went up and down from a stair with 11 steps 10 times and after that my whole body felt weak and everytime i stand up i feel weak and i get light headed and its been like this ever since i’ve done that like 10 minutes ago what does this mean?

  • When I maxed out in deadlifting this day I could not see anything and it felt like my legs were spinning, I did not dare to lift any more than I did because I feared that I would pass out.

  • Working out while fasted gives the best results. Eating prior to working is not necessary and I
    Recommend not eating prior to workout just stay hydrated. This is all of course if your cutting/losing weight.

  • I was doing sumo squats with a 20 lb weights and other strength trainings and 2 days after I feel kinda off balance when standing and walking it feels like a pressure on back of my neck and back and my feet feel different when upright.

  • When I do hip thrust I end up felt dizziness so I stop workout immediately! I feel like I’m wasting my time without doing anything �� between I have 8 months since I started lift heavy weights but it still bothering me all the time while I do hip thrust!

  • Every time I do pushups like 40 to 50 I feel dizzy and light headed I’m feeling this from a month earlier in used to do e, excise in my home town but recently I shifted to a new city after shifting this is happening to me i also have anxiety please suggest something

  • Did a workout today in my school weight training class and my teacher had us on high rep sets. I did heavy weight with those high reps and I was dead. My vision went blurry I was feeling weak and light headed. And ontop of that out gym is in a portable building because our school is being remodeled and we have no water.

  • Please reply
    I have a question?
    2 week later i saw a movie nd i got motivated from it. So i started to run 1 km everyday 10 pull ups 100 pushups nd weight lighting.

    In starting i was very exicted nd i did it for 2 weeks
    But now, i m feeling dizziness.
    My hands are paining.

    Is there a problem in my diet? Is that why i m feeling dizziness??

  • Bruh, i feel pity on myself hahaha I almost passed out after doing a 15 minutr cycling….and it was my 1st excercise of thw day hahahahahahah

  • i have recently been feeling light headed when running and i never felt that sensation before. it wasn’t even hot outside, there is a breeze and plenty of shade all around. but after 15 mins of running i start to feel dizzy and i’m not even heavy…i’m 5’6 140 lbs. no chest pain just dizzy and i feel like fainting…i’m not even pushing my body to its maximum potential..just light jogging.

  • Hey I get a little dizzy and light headed after 20 min of tredmil it’s not bad or anything I’m fine nothing happens I can hardly even tell eveything is fine with my but I just feel a little weird after I get off the tredmil is that just normal for people who use tredmils?

  • I go to a tennis camp and every time when I’m warming up I get dizzy. My vision gets blurry and I am crazy tired. I not even working that hard out there. It got so bad, last year I fell to the ground and almost passed out.

  • I get dizzy on my 2nd workout. I felt like passing out. Well yeah i havent eatin except coffee and bread for a day. I almost collapse. Im puahing my self on my first back workout im doing weighted pullups on my first and i was sweating cold so its a bad feeling. Good thing i have dates fruit incase i run out of sugar. Im doing my cuts thats why i only eat 1 big meal on the evening and fasting on the day.. Bad diet plan i guess

  • Hey I’ve been training for 4 weeks and today I started squats and lifting and after few seconds i saw dark spots and i throw up and I had a lot of sweat so I sit on the floor and slowly start to see again why it’s happened?

  • you wanna give me a lesson in hunger pains.
    great. why has my stomach get really nasty with pain or even burning when im hungry?
    what does the stomach do when it gets hungry?
    what’s going on?
    i really need help and my doctor is out of ideas.
    i’m doing everything including a very clean diet.
    no grains.
    meat, fish, veggies, fruit, eggs, and yogurt.
    i drink water and sometimes coconut milk.

    can candida do this?

    if you have the slightest clue i’d love to know about it.

  • I don’t know if anyone’s still watching to be able to answer my question. But today I was trying a freeway style bench press. And I don’t know if that’s what it’s actually called. But I noticed that with the free weights it was a lot harder than with a bar. And I started kind of getting this feeling that I was going to black out while I was doing it like I was seeing little things in front of my eyes. But I didn’t black out. And I went ahead and strained to finish. Afterwards I felt light-headed the rest of my workout. And I still kind of feel a little light-headed and weird. Does anyone know what this could be?

  • I only feel dizzy after training legs every once in a while, do you think it’s because I didn’t warm up enough? Or have a big enough meal?

  • Hi Mikey and Sabrina. I have been experiencing quite a lot of head rushing during my exercising. I am not sure my PT is pushing me to hard. I can do more repetition on a lighter weight I think, than heavy weight with more repetition. As sooner I pushed the heavyweight my head just pumping on the top of my head. Please give me some ideas what to say to him�� thank you

  • I don’t get dizzy just a head rush when I stretch up from lower body stretches. Or one time a few weeks ago I was lying down and got up quick and got a head rush. I exercise 4 times a week, and always have. I’m 50, I had a few check ups, in last few months, was ok ��. But the head rush makes me nervous, I’ve always got a slight head rush when stretching upwards, and arms straight out. But I’m usually also doing floor stretches and stand up. Then get a rush. No dizziness no headaches no sick stomach. I have anxiety bad and health anxiety for four five years now.

  • I worked out very hard and after i went to rest and i lied down in the bed and after some time i wanted to stand up to drink some water i got very dizzy

  • I have dizziness for 5 years and i am worried about it so much i get dizzy when i drive or stand and sitting and i get really anxious and i have anxiety.

  • And what do you think about those who say that your stomach needs time (more than 3-4 hours) between meals to rest? I am so curious because everyone has a different opinion on this topic.:-)