From Wikipedia, the free encyclopedia. Shridhar Chillal (born 1938) holds the world record for the longest fingernails ever reached on a single hand, with a combined length of 909.6 centimeters (358.1 inches). Chillal's longest single nail is his thumbnail, measuring 197.8 centimeters (77.87 inches). He stopped cutting his nails in 1952.
You can also try to slow your heart rate via breathing and relaxation techniques, by practicing other mind/body therapies such as biofeedback, or by taking supplemental calcium and magnesium. For women, start with 100 mg of magnesium (citrate, glycinate, or chelate) and increase the dose up to 350 mg daily.
Once exercise begins, the sympathetic nervous system is activated and the heart rate rises quickly. Heart rate also rises by simply thinking about exercise, which is referred to as anticipatory heart rate response. The parasympathetic division helps to slow down heart rate and respiration.