Hello. Regarding meditation - The vagus nerve literally connects the heart and brain. Some studies show an increased tone of the vagus nerve. This means lower levels of the stress hormone cortisol. The syndrome of concentration of cortisol in the body while increasing the tone of the vagus nerve leaves the likelihood of a stroke and heart attack. Recent studies have even proven that meditation can alter the part of telomeric DNA that controls cell aging. This is from my essay. By the way, great guys from - https://peachyessay.com/ helped me. I advise everyone, good luck!