What is the nutrient possibly making your heart younger? (1/2)

​Do you know how many times our heart beats a day?
 
The answer is about 100 thousand times.  The heart doesn’t stop any moment and if you live until 80 years old, your heart beats about 2.9 billion times in your life. So it is not surprising that our heart becomes weaker with age.
 
The healthy heart sends out blood to the whole body by the repeats that a left ventricle contracts and expands flexibly. On the other hand, if the function of the heart becomes weak, the left ventricle is not able to contract and expand enough to send out sufficient blood to the whole body. This is the condition called heart failure.
 
Once you become this condition, you experience shortness of breath even if you climb up stairs a little or you tend to easily get tired. Before we notice, people with pre-heart failure (hearts become as weak as just before heart failure) are dramatically increasing.
 
The cause attracting attention is lack of nutrient which becomes the source of required energy for the heart. So what is the source of the energy for the heart?
 
It has not been proven because it is the latest medical research, but there are not a few elderly people who are short of the nutrient potentially.
 
8 elderly people who checked the amount of the nutrient had 6 minutes walking test to check the performance of the heart. 3 of the 4 people who were short of the nutrient couldn’t walk the baseline distance within 6 minutes and 1 of the 4 people who were not short of the nutrient couldn’t walk the baseline distance. This tells that there is an obvious difference about the heart function.
 
In a research, 300 people who showed the weakness of heart such as shortness of breath were gathered and the nutrient becoming the source of the energy was given for a year. As a result, their heart function was dramatically improved.
 
What is the nutrient which will be the key to make your heart younger?