Occasionally overnight is not likely to sudden death, if the heart itself has a problem is very easy because of overnight and lead to too much excitement, resulting in excessive pressure on the heart and sudden death, so it is recommended that the best not to overnight. In addition to the impact of overnight on the heart, but also the body’s biological clock will be disrupted, resulting in immunity, resistance to decline, aging, bad color and other problems. Night is the time to rest, the body needs to relax, and overnight the next day after the dizziness, brain swelling, no spirit, and over time there will be memory loss, neurasthenia and so on, so no matter what age group is recommended not to take a chance to overnight to stay up all night, if you have no choice but to recommend the next day for adequate rest.