After reviewing more than 50 previous researches, researchers of a new study have found that excessive thinness is also not good for health. Clinically underweight people have a higher risk of death than obese individuals.

Even more shocking is that the excessively thin people have almost twice the risk of death when compared to normal-weight people. Lead researcher Dr. Joel Ray at St. Michael's Hospital in Toronto said they have analyzed as well as followed up with the patients for a period of five years or more.

Majorly, researchers focused on associations between the participants BMI, body mass index and death rates from any reason. Researchers have also compared mortality rates with the weight pattern of newborn and stillborns.

After assessing and follow up, researchers reached at a conclusion that those who are underweight with a BMI of 18.5 or less had a 1.8 times increased risk of death. The higher risk was found when compared with people who had a normal BMI between 18.5 and 25.9.

Those who were found to be having BMI between 30 and 34.9 were having higher risk of death of by 1.2 times when compared with people who were having healthy eight. People who were excessively obese having a BMI of 35 or more had a 1.3 times increased risk of dying.

This has led study researchers to highlight the importance of having normal weight and maintaining the same. Poverty, malnourishment, mental problems, smoking and alcohol use among other factors were found to be key reasons of being underweight. The study has been published in the Journal of Epidemiology and Public Health.