
The "second heart" of the body: Here's why it is important (and how to activate it)
Let's learn more about this organ...
What is the 'Second Heart' in your calves
The soleus muscle along with other muscles in the calves, form a strong muscular pump system for blood circulation. Your body receives oxygen-rich blood from your heart before it reaches your lower legs, at high speed. The process of blood returning to the heart faces significant challenges, because gravity acts against it.
The calf muscles function as the body's secondary pump mechanism.
Your calf muscles activate to compress the veins in your legs during movement, and push blood upward toward your heart. Medical professionals refer to this process as the "calf muscle pump" while they also call your calf muscles your "second heart" because they help your actual heart distribute blood efficiently, through your body's lower regions.
Why is this important
Blood and toxins tend to accumulate in your lower legs when your calves experience insufficient movement.
The accumulation of blood in these areas leads to swelling and fatigue in the legs, and potentially dangerous blood clotting issues. Deep Vein Thrombosis (DVT) forms blood clots in deep leg veins, which results in painful swelling and various other health complications.
Strong calf muscles protect against health issues by enhancing blood circulation and decreasing heart workload. Your calf muscles provide a basic way to maintain cardiovascular wellness together with boosting your energy levels.
Simple ways to activate your second heart
You don't require expensive equipment or gym membership to activate your calf muscles. The regular practice of simple movements will maintain robust operation of your second heart. These simple methods can be used to activate your second heart:
Walk Regularly
Walking represents an excellent method to activate your calf muscles. The muscle contracts with each step to elevate blood flow toward the upper body. A brief daily walk between 15 to 20 minutes, brings substantial benefits to your circulation system.
Calf Rraises
Begin standing upright then elevate your toes toward the ceiling while keeping your heels off the floor. Keep the position for several seconds, before returning your heels to their normal position. Repeat 10-15 times. Doing this basic exercise both builds up your calf muscle strength and enhances blood circulation in your body.
Stretch your calves
Stretching exercises preserve the flexibility along with the health of your calf muscles.
Place yourself on the floor with your legs straight, then use a towel or exercise band to grab your toes before drawing them toward your body. Maintain this position between 20-30 seconds and repeat several times.
Regular calf muscle movements should be performed when spending long periods sitting or standing.
People who work or spend time in long sitting or standing positions, should actively move their calf muscles as part of their daily routine.
Ankle circles combined with toe flexions and extensions along with seated calf raises, will maintain proper blood circulation.
Consider
compression socks
People who face circulation challenges along with extended periods of immobility, can benefit from compression socks, which use gentle compression to enhance venous blood circulation. People find these socks especially helpful during air travel, and long automobile journeys.
Benefits of keeping your second heart active
Regular activation of the calf muscles produces various positive effects for health.
Better blood circulation
Calf muscle activation leads to faster blood return to the heart, thus preventing swelling and varicose veins and blood clot formation.
Increased energy
Good circulation leads to better oxygen and nutrient delivery to muscles and organs, which enhances your daily energy and reduces your feelings of tiredness.
The practice of calf activation reduces both pain and swelling that occurs in the legs due to inadequate blood circulation.
Supports heart health
Your calf muscle pump serves to help your heart function more efficiently, by circulating blood which reduces the heart's workload and benefits your cardiovascular system.
The recovery process after illness or injury becomes better due to calf muscle strength.
When you have strong calf muscles they protect you from complications that occur after periods of inactivity, like surgery or illness by sustaining proper blood flow.
Sources
An article from Shaftesbury Chiropractic explains why the calf muscle is known as a "second heart"
PMC
A study published on PubMed

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


Business Standard
12-08-2025
- Business Standard
Lupin partners with Sandoz for launch and commercialization of ranibizumab across global markets
Lupin today announced that it has partnered with Sandoz Group AG (Sandoz), Switzerland, to market and commercialize Lupin's biosimilar ranibizumab across multiple regions. Under the terms of the agreement, Sandoz will oversee commercialization of the product across the European Union (excluding Germany), Switzerland, Norway, Australia, Hong Kong, Vietnam, and Malaysia. Lupin will be responsible for manufacturing the product and for regulatory submissions. Sandoz will hold exclusive marketing rights in most of the designated markets, except for France, Australia, Vietnam, and Malaysia, where it will have semi-exclusive marketing rights. Pursuant to another agreement executed between the two companies, Sandoz will acquire sole rights for commercialization of Lupin's biosimilar ranibizumab in Canada, while Lupin will manage its manufacture and regulatory filings. Ranibizumab is a recombinant humanized IgG1 monoclonal antibody fragment that binds to and inhibits vascular endothelial growth factor A (VEGF-A). Its indications encompass the treatment of patients with Neovascular (Wet) Age-Related Macular Degeneration (AMD), Macular Edema Following Retinal Vein Occlusion (RVO), Diabetic Macular Edema (DME), Proliferative Diabetic Retinopathy (PDR), and Choroidal Neovascularization (CNV).


Indian Express
05-08-2025
- Indian Express
How to prepare for a long-haul flight to make it more comfortable
Preparing for a long-haul flight can significantly enhance your travel experience by ensuring greater comfort and well-being throughout the journey. One of the key steps is to focus on pre-flight preparation. ''A little pre-flight preparation goes a long way in preventing post-flight pain. Comfort is not a luxury on long-haul flights—it's a health requirement,' said Dr Abhishek Vaish, orthopedic surgeon and sports injury specialist, Indraprastha Apollo Hospital and Healing Touch Clinic, New Delhi. Dr Narander Singla, lead consultant, internal medicine, CK Birla Hospital, Delhi, added that it's important to be well-rested before your flight, as this can help minimise the effects of jet lag once you arrive at your destination. 'Staying hydrated in the days leading up to your journey is essential as it can help the body be comfortable and devoid of any last-minute health hassles,' said Dr Singla. When packing your carry-on, include all the essentials, such as your travel documents, medications, a change of clothes, and comfort items like a neck pillow and eye mask, to make the trip more convenient and relaxing. In-flight comfort is just as crucial; as such, Dr Singla advised that one should choose loose, breathable clothing and wear layers that allow for adjustment to changing temperatures on board. 'Make a conscious effort to stay hydrated by drinking water regularly during the flight, as dehydration can exacerbate fatigue and discomfort. It is also recommended to get up and stretch or walk around every few hours to boost circulation and reduce the risk of stiffness or blood clots. Personal comfort items, such as a neck pillow, eye mask, and earplugs, can help you rest more easily, especially on overnight flights,' said Dr Singla. Sitting still for 8 hours or more can increase the risk of Deep Vein Thrombosis, a condition in which blood clots form in the deep veins, typically in the legs. 'I advise patients, especially those with a sedentary lifestyle or history of varicose veins, to stand, stretch, and walk down the aisle every two hours. Even simple ankle rolls and toe flexes help,' recommended Dr Vaish. Sleeping in an upright position can cause neck strain or stiffness. 'A good travel neck pillow can make a big difference. Use a neck support that holds your cervical spine in a neutral position. Avoid slouching forward as it puts excessive pressure on the lumbar spine,' advised Dr Vaish. You can also try standing yoga poses or stretches during layovers, advised Dr Vaish. From a wellness perspective, managing jet lag is key. Dr. Singla said that you can begin adjusting your sleep schedule a few days before departure to better align it with the time zone of your destination. 'If you rely on any medications, such as for motion sickness, pain relief, or other conditions, be sure to take them as directed and keep them easily accessible. Finally, packing healthy snacks can help maintain energy levels during the flight and reduce reliance on potentially less nutritious airline meals,' said Dr Singla. Eat light before and during the flight. Heavy or salty foods can lead to bloating, discomfort, and water retention, experts urge. 'Stick to easily digestible meals, preferably rich in fibre and low in sodium. High-salt meals can make you feel sluggish and promote swelling in your limbs,' said Dr Vaish. Carry hand sanitiser, disinfectant wipes, and avoid touching your face. 'Wipe down armrests, tray tables, and entertainment screens when you sit down,' said Dr Vaish. DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your health practitioner before starting any routine.


Time of India
30-07-2025
- Time of India
The "second heart" of the body: Here's why it is important (and how to activate it)
We all know that the heart, along with the brain, is the most important organ for the body that is responsible for pumping blood. However, there exists a "second heart" as well, which functions inside your body, though it does not reside within your chest cavity. Let's learn more about this organ... What is the 'Second Heart' in your calves The soleus muscle along with other muscles in the calves, form a strong muscular pump system for blood circulation. Your body receives oxygen-rich blood from your heart before it reaches your lower legs, at high speed. The process of blood returning to the heart faces significant challenges, because gravity acts against it. The calf muscles function as the body's secondary pump mechanism. Your calf muscles activate to compress the veins in your legs during movement, and push blood upward toward your heart. Medical professionals refer to this process as the "calf muscle pump" while they also call your calf muscles your "second heart" because they help your actual heart distribute blood efficiently, through your body's lower regions. Why is this important Blood and toxins tend to accumulate in your lower legs when your calves experience insufficient movement. The accumulation of blood in these areas leads to swelling and fatigue in the legs, and potentially dangerous blood clotting issues. Deep Vein Thrombosis (DVT) forms blood clots in deep leg veins, which results in painful swelling and various other health complications. Strong calf muscles protect against health issues by enhancing blood circulation and decreasing heart workload. Your calf muscles provide a basic way to maintain cardiovascular wellness together with boosting your energy levels. Simple ways to activate your second heart You don't require expensive equipment or gym membership to activate your calf muscles. The regular practice of simple movements will maintain robust operation of your second heart. These simple methods can be used to activate your second heart: Walk Regularly Walking represents an excellent method to activate your calf muscles. The muscle contracts with each step to elevate blood flow toward the upper body. A brief daily walk between 15 to 20 minutes, brings substantial benefits to your circulation system. Calf Rraises Begin standing upright then elevate your toes toward the ceiling while keeping your heels off the floor. Keep the position for several seconds, before returning your heels to their normal position. Repeat 10-15 times. Doing this basic exercise both builds up your calf muscle strength and enhances blood circulation in your body. Stretch your calves Stretching exercises preserve the flexibility along with the health of your calf muscles. Place yourself on the floor with your legs straight, then use a towel or exercise band to grab your toes before drawing them toward your body. Maintain this position between 20-30 seconds and repeat several times. Regular calf muscle movements should be performed when spending long periods sitting or standing. People who work or spend time in long sitting or standing positions, should actively move their calf muscles as part of their daily routine. Ankle circles combined with toe flexions and extensions along with seated calf raises, will maintain proper blood circulation. Consider compression socks People who face circulation challenges along with extended periods of immobility, can benefit from compression socks, which use gentle compression to enhance venous blood circulation. People find these socks especially helpful during air travel, and long automobile journeys. Benefits of keeping your second heart active Regular activation of the calf muscles produces various positive effects for health. Better blood circulation Calf muscle activation leads to faster blood return to the heart, thus preventing swelling and varicose veins and blood clot formation. Increased energy Good circulation leads to better oxygen and nutrient delivery to muscles and organs, which enhances your daily energy and reduces your feelings of tiredness. The practice of calf activation reduces both pain and swelling that occurs in the legs due to inadequate blood circulation. Supports heart health Your calf muscle pump serves to help your heart function more efficiently, by circulating blood which reduces the heart's workload and benefits your cardiovascular system. The recovery process after illness or injury becomes better due to calf muscle strength. When you have strong calf muscles they protect you from complications that occur after periods of inactivity, like surgery or illness by sustaining proper blood flow. Sources An article from Shaftesbury Chiropractic explains why the calf muscle is known as a "second heart" PMC A study published on PubMed