TheBuzr
© Getty Images / ChiccoDodiFC The study found that people with the highest levels of vitamin D had a 4.3-fold higher cardiorespiratory fitness than those in the bottom quartile. Cardiorespiratory fitness is a reliable surrogate for physical fitness, and is a measure of the ability of the heart and lungs to supply oxygen to the muscles during exercise. Scientists from Virginia Commonwealth University in Virginia added that even after adjusting for factors that could influence the association such as age, sex, race, body mass index, smoking, hypertension, and diabetes, the highest vitamin D quartile still showed a 2.9-fold greater […]
