HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

question-icon

What Causes Dizziness After Exercising?

default
Posted on Thu, 30 Jul 2015
Question: what causes lightheadedness after excersing when your in shape? i walk on treadmill about 45 when i do cardio and drink 8 glasses of water a day.
doctor
Answered by Dr. Muhammad Ali Rauf (1 hour later)
Brief Answer:
Most probably due to decreased oxygen supply to brain

Detailed Answer:
Hello

Thank You for contacting HCM. My name is Dr Muhammad Ali Rauf & i will look into your problem.

I have gone through your query and would try to help you in the best possible way. Whenever there is decreased blood supply to brain then brain becomes hypoxic(decreased oxygen supply to brain) and as a result lightheadedness &/or syncope can occur. Exercise causes sweating and fluid loss. As a result blood volume decreases and may result in decreased delivery to brain. As you perform exercise so you need to maintain adequate hydration to avoid any such problem.

Hope I have answered your query. If you have any further questions I will be happy to help if not then don't forget to close the discussion and rate it.
Wishing you good health !!
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
default
Follow up: Dr. Muhammad Ali Rauf (57 minutes later)
thanks so much for getting back to me. i drink plenty of water tho and that's why im concerned. actually im being tested for pots syndrome in the next month. the lightheadedness has been going on for some time. i actually prob drink too much water. how much water should i drink?
doctor
Answered by Dr. Muhammad Ali Rauf (4 hours later)
Brief Answer:
appx. 2.5-3lit/day

Detailed Answer:
Hello

You are welcome.

Actually it is difficult to tell because there are multiple factors on which it depends. On avg 2.5-3lit should be consumed per day. If someone is working in sun and there is increased sweating then obvious this figure will increase as well.

Thank you
Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
Answered by
Dr.
Dr. Muhammad Ali Rauf

General & Family Physician

Practicing since :2013

Answered : 1312 Questions

premium_optimized

The User accepted the expert's answer

Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

159 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
What Causes Dizziness After Exercising?

Brief Answer: Most probably due to decreased oxygen supply to brain Detailed Answer: Hello Thank You for contacting HCM. My name is Dr Muhammad Ali Rauf & i will look into your problem. I have gone through your query and would try to help you in the best possible way. Whenever there is decreased blood supply to brain then brain becomes hypoxic(decreased oxygen supply to brain) and as a result lightheadedness &/or syncope can occur. Exercise causes sweating and fluid loss. As a result blood volume decreases and may result in decreased delivery to brain. As you perform exercise so you need to maintain adequate hydration to avoid any such problem. Hope I have answered your query. If you have any further questions I will be happy to help if not then don't forget to close the discussion and rate it. Wishing you good health !!