Everyone desires longevity, and there are various ways to predict a person's lifespan. Common indicators include long eyebrows, a high forehead, large earlobes, and the life line on the palm. These facial features and astrological signs lack scientific basis and should not be entirely trusted. Other indicators have some physiological basis but lack universality, such as being thin, sleeping soundly, having no age spots, and being free from illness before age sixty. For example, some people can fall asleep instantly and live long lives; however, others who sleep excessively may have shorter lifespans.
Scientists have discovered that the following three signs are indeed related to health and longevity, and interested seniors can test themselves.
1. Slow Heart Rate: Everyone's heart rate is different. Some people's heart beats only sixty times per minute, while others beat more than ninety times per minute. A difference of thirty beats per minute amounts to a difference of forty thousand beats per day! A heart beating too fast will definitely cause the heart to expend too much energy, leading to strain and shortening lifespan. A slow heart rate, but one that ensures normal contraction and relaxation to meet the body's blood circulation needs, and is a long-term stable and functional slow heart rate, is directly proportional to longevity.
II. Large Lung Capacity Lung capacity refers to the total amount of air that can be exhaled after a maximal inhalation. While most people's lung capacity declines with age, many long-lived elderly individuals maintain the lung capacity they had in their youth. Currently, many institutions abroad consider lung capacity one of the primary indicators for assessing aging.
Third, strong grip strength: Researchers in the United States and the United Kingdom have found that older people with strong grip strength are not only physically strong and have normal functioning of their internal organs, but also have higher bone density, which leads to longer lifespan.
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