Exercise is a critical component of maintaining a healthy body. It not only helps to keep our physique in shape, but it also has a positive impact on the heart, which is our most crucial organ.
The heart isn’t just a muscular pump that beats billions of times in our lifetime; it performs a variety of essential functions that keep us alive.
How the Heart Works
The heart comprises four chambers – two atria and two ventricles.
It plays a vital role in oxygenating the body by pumping deoxygenated blood from the right side of the heart to the lungs where it gets saturated with oxygen and is pumped back into the left side of the heart. From here, the oxygenated blood is then circulated around our body via the arteries.
The four valves of the heart ensure that blood flows in the proper direction and the walls of the heart muscles contract and relax in a coordinated manner to keep the heart beating and functioning correctly.
How Exercise Impacts the Heart
Exercise might increase the heart rate, blood pressure, and hormones such as adrenaline and noradrenaline, but these responses are adaptive and necessary in order for the heart to work harder and get stronger over time.
During exercise, the body demands more oxygen, and this oxygen-hungry body tissue prompts the heart to increase its output.
The heart muscles respond by pumping blood more forcefully and efficiently and increasing the stroke volume (the amount of blood pumped with each contraction).
Over time, regular exercise strengthens the heart and enables it to pump more efficiently, making it less likely to overwork and more resistant to the negative health consequences associated with a sedentary lifestyle.
This reduces the risk of heart disease and other cardiovascular diseases.
The Positive Effects of Exercise on the Heart
There are many benefits of exercise on the heart, including:.
Lowered Blood Pressure
Regular aerobic exercise strengthens the heart muscles and makes them less prone to overwork and adverse reactions.
This helps maintain a healthy blood pressure, and shield the heart from elevated levels of stress hormones, which might contribute to high blood pressure over time.
Reduced Cholesterol Levels
Exercise helps to increase the HDL (‘good’) cholesterol, which prevents the accumulation of harmful LDL (‘bad’) cholesterol that can clog our arteries and result in life-threatening illnesses like heart attacks and strokes.
Reduced Risk of Type 2 Diabetes
Physical activity helps the body become more sensitive to insulin, the hormone that allows us to absorb glucose into our tissues. As a result, we are less likely to develop high blood sugar, a precursor to type 2 diabetes.
Weight Management
Exercise helps to burn calories, which can help to reduce obesity and maintain healthy weight. An overweight body puts a strain on the heart that can increase the likelihood of cardiovascular disease over time.
Stress Reduction
Regular exercise helps to keep stress at bay by increasing the release of mood-lifting hormones. This reduces the risk of cardiac arrest and other stress-related diseases that could negatively impact the heart.
Types of Exercise that Boost Heart Health
There are different types of exercise that can help to boost heart health:.
Aerobic Exercise
Aerobic exercise such as running, cycling, or swimming is one of the best types of exercise for heart health. It involves performing rhythmic movements for an extended period, which increases the heart rate and strengthens the heart muscles.
Strength Training
Strength training such as weight lifting, push-ups, and sit-ups, can help strengthen the heart muscles, improve blood flow, and lower the risk of heart disease over time.
It can also help build muscle and burn calories, which are essential for weight management.
High-Intensity Interval Training (HIIT)
High-intensity interval training alternates between periods of short, intense exercise with brief periods of recovery.
This type of training can improve overall fitness, increase heart rate, and help the heart muscles become more efficient at pumping blood.
Conclusion
Exercise is vital for maintaining a healthy heart. It strengthens the heart muscles, lowers blood pressure, reduces cholesterol levels, lowers the risk of type 2 diabetes, promotes weight management, and reduces stress levels.
Aerobic exercise, strength training, and high-intensity interval training are some of the best types of exercise that can boost heart health and contribute to overall well-being.