*Most furry mammals tend to have longer life span due to hibernation.According to researchers, tiny rodents e.g hamsters, the animal that was tested, they temporarily lower their metabolism and body temperatures, the process called topor, it stops and even reverses a natural breakdown of chromosomes linked to ageing. The test conducted is not applicapble to Human beings because humans do not significantly lower their body temperature when sleeping, nor is there a comparable slowdown in metabolic rate.