Health And Me Desk

Why Do You Get A Head Rush When You Stand Up Suddenly? Here’s What Happens In Your Body

Standing up suddenly from your bed, sofa or chair can sometimes cause a brief “head rush”, you may feel light-headed, notice your vision dimming, feel weak or even slightly unsteady. While this can feel alarming, there is a simple physiological explanation for why it happens.

When you stand up, gravity causes some of your blood to temporarily move towards your legs and abdomen. This reduces the amount of blood returning to the heart. Within seconds, the autonomic nervous system usually steps in by tightening the blood vessels and adjusting the heart rate to maintain blood pressure and ensure enough blood reaches the brain.

When A Sudden Drop In Blood Pressure Becomes A Concern

A brief drop in blood pressure during this transition can be normal. However, if the drop is too significant or the body is unable to compensate properly, it can lead to dizziness, blurred vision, weakness and, in some cases, fainting. Orthostatic hypotension is clinically defined as a sustained fall in systolic <a href="https://www.healthandme.com/health-wellness/blood-pressure-heart-medicines-may-boost-effectiveness-of-antidepressants-aiims-study-finds-article-155321333" data-type="tilCustomLink">blood pressure</a> of at least 20 mmHg or diastolic blood pressure of at least 10 mmHg within three minutes of standing.

Several factors can contribute to this, including dehydration, heat, prolonged inactivity, blood loss and medications that lower blood pressure. Recurrent episodes can also be linked to problems with the autonomic nervous system, including autonomic involvement in <a href="https://www.healthandme.com/health-news/parkinsons-disease-could-affect-25-million-people-worldwide-in-the-next-25-years-article-151246454" data-type="tilCustomLink">Parkinson’s disease</a> and other neurodegenerative disorders.

Also read: <a href="https://www.healthandme.com/health-wellness/the-silent-killer-why-more-indians-need-to-pay-attention-to-liver-cancer-article-155998015" data-type="tilCustomLink">The Silent Killer: Why More Indians Need To Pay Attention To Liver Cancer</a>

How To Prevent The Head Rush And When To Seek Help

H1N1 Cases Surge in Delhi: Doctor Explains Symptoms, Warning Signs, Vaccine & Treatment

One simple precaution is to avoid changing positions too quickly, especially after lying down for several hours. Sitting on the edge of the bed for a few moments before standing gives the <a href="https://www.healthandme.com/health-wellness/why-are-more-women-under-35-reporting-heart-related-symptoms-article-155235916" data-type="tilCustomLink">cardiovascular system</a> time to adjust. Moving your feet or tightening your leg muscles before getting up may also help improve blood flow back to the heart. If you start feeling dizzy, it is safer to sit or lie down rather than trying to walk through it.

An occasional, very brief episode may simply be the body’s normal response to a sudden change in posture. However, frequent episodes, fainting, falls, palpitations or persistent dizziness should not be ignored and warrant medical assessment, particularly in older adults or people taking multiple medications.

Dr Sachin Adukia Sr Consultant M.B.B.S., MD (General Medicine), DNB (Neurology), LH Hiranandani Hospital

Health Conditions A-Z

health

why-do-you-get-a-head-rush-when-you-stand-up-suddenly-heres-what-happens-in-your-body

head rush

blood pressure

light headed

lightheadedness

head rush reason

head rush reasons

head rush treatment

why-are-more-people-getting-acid-reflux-gerd-causes-and-lifestyle-fixes

Why Are More People Getting Acid Reflux? GERD Causes and Lifestyle Fixes

childhood-rashes-when-is-home-care-enough-and-when-should-you-see-a-doctor

Childhood Rashes: When Is Home Care Enough and When Should You See a Doctor?

Health & Wellness

8 Sit-Up Variations to Strengthen Your Core and Build Stability

Benefits Of Ayurvedic Health Supplement Ashwagandha

9 Anti-Inflammatory Breakfast Options You Should Try

5 Foods You Should Avoid For PCOS, Says Gynecologist

Love Sitting With Your Legs Crossed? Here’s You Should Avoid It

6 Daily Foods That Are Secretly Increasing Your Calories

9 Brain Boosters You Should Do Everyday

Hip Exercises That Will Keep You Flexible As You Age

9 Leg Exercises Office Workers’ Should Do At Home

Benefits of Having Herbal Tea Every Morning

9 Daily Habits That Boost Your Brain Power

Lower-Body Exercises That Are Game-Changers

How Drinking Apple Cider Vinegar Helps You

Aging Myths You Should Never Believe

Superfoods That Support Your Gut Health

What Happens To Your Body When You Eat Instant Noodles Every Day?

Health Issues Premature Babies Often Face

Exercises Office Workers Should Do For Their Heart Health

Reasons Why You Should Add Raw Turmeric To Your Diet

Benefits Of Drinking Milk At Night: Why You Should Do It

Food That Provides Vitamin B12 Naturally In Your Diet

Surprising Health Benefits Of Fenugreek Seeds

9 Superfoods You Should Eat For Your Brain Health

What Does Mental Health Support Look Like At Work?

Long Stretches You Should Do To Unwind From Your Day

Colon Cancer In Young Adults: Early Symptoms You Should Know

Health Benefits Of Eating Dry Fruits Everyday

Are You At Risk For Fried Rice Syndrome?

These Tests Reveal How Well You Are Aging

Lower-Back Exercises You Should Do After A Long-Day's Work

Children’s Diet – What Kids Need To Eat For Immunity Building

Common Diabetes Myths That Could Hurt Your Health

Love Spicy Food? Here’s How It Affects Your Health

Superfood List: Veggies And Fruits You Must Have For Immunity

Foods People With IBS Should Avoid

Exercises To Improve Digestion

Easy Work Lunches You Can Make In The Morning

Hunger Vs Craving: Difference Explained In 60 seconds

These Things Can Cause Your Heart To Age Faster

High Carb Foods That Are Actually Healthy

Standing up suddenly from your bed, sofa or chair can sometimes cause a brief “head rush”, you may feel light-headed, notice your vision dimming, feel weak or even slightly unsteady. While this can feel alarming, there is a simple physiological explanation for why it happens.When you stand up, gravity causes some of your blood to temporarily move towards your legs and abdomen. This reduces the amount of blood returning to the heart. Within seconds, the autonomic nervous system usually steps in by tightening the blood vessels and adjusting the heart rate to maintain blood pressure and ensure enough blood reaches the brain.When A Sudden Drop In Blood Pressure Becomes A ConcernA brief drop in blood pressure during this transition can be normal. However, if the drop is too significant or the body is unable to compensate properly, it can lead to dizziness, blurred vision, weakness and, in some cases, fainting. Orthostatic hypotension is clinically defined as a sustained fall in systolic blood pressure of at least 20 mmHg or diastolic blood pressure of at least 10 mmHg within three minutes of standing.Several factors can contribute to this, including dehydration, heat, prolonged inactivity, blood loss and medications that lower blood pressure. Recurrent episodes can also be linked to problems with the autonomic nervous system, including autonomic involvement in Parkinson’s disease and other neurodegenerative disorders.Also read: The Silent Killer: Why More Indians Need To Pay Attention To Liver CancerHow To Prevent The Head Rush And When To Seek Help                        One simple precaution is to avoid changing positions too quickly, especially after lying down for several hours. Sitting on the edge of the bed for a few moments before standing gives the cardiovascular system time to adjust. Moving your feet or tightening your leg muscles before getting up may also help improve blood flow back to the heart. If you start feeling dizzy, it is safer to sit or lie down rather than trying to walk through it.An occasional, very brief episode may simply be the body’s normal response to a sudden change in posture. However, frequent episodes, fainting, falls, palpitations or persistent dizziness should not be ignored and warrant medical assessment, particularly in older adults or people taking multiple medications.Dr Sachin Adukia Sr Consultant M.B.B.S., MD (General Medicine), DNB (Neurology), LH Hiranandani Hospital

why do you get a head rush when you stand up suddenly? here’s what happens in your body

About Us

Contact Us

Terms & Conditions

Privacy Policy

Company

Health and Me is a premium website with content written and curated to function as a handbook for all Health concerns.

Why Do You Get A Head Rush When You Stand Up Suddenly? Here’s What Happens In Your Body

Why Are More People Getting Acid Reflux? GERD Causes and Lifestyle Fixes

Childhood Rashes: When Is Home Care Enough and When Should You See a Doctor?

Cancer Should Be Made Notifiable In India, Say Experts: Here’s Why

Health Conditions A-Z

Why Do You Get A Head Rush When You Stand Up Suddenly? Here’s What Happens In Your Body

Why Are More People Getting Acid Reflux? GERD Causes and Lifestyle Fixes

Childhood Rashes: When Is Home Care Enough and When Should You See a Doctor?