Background Now, eating disorders and obesity and their correlations are danger signal in worldwide which is caused by multifactor and associated with significant mortality and morbidity. Main body Every aspect of a patient’s life is influenced by eating disorders and obesity and their correlations. Due to frequent seeing of obese patients, eating disorders have been included in the review as they can sometimes be associated with obesity. However, it should be noted that most patients having eating disorder are at risk to be obese or overweight. This research explores the risk factors for the two disorders, as well as the assessment of medical complications and treatment recommendations for the disorders. In these two disorders, there is also a correlation. The essential consideration is that eating disorders are impulse-control disorders which are similar to addictive behaviors in some aspects. So it is a crying need to treat a patient with obesity and eating disorders simultaneously to ensure success. Genome-wide association studies (GWASs) have increased our knowledge of the pathophysiology of eating disorders (EDs) and obesity and their correlation. Conclusion This review enlightens on the summary of eating disorder, obesity, genotypic traits, molecular relations, interaction, correlation, and effect of eating disorder and obesity which outline potential future directions and clinical implications for patients with EDs and obesity.

Background: During the Covid-19 pandemic, the risk is high for people to contact the virus. The risk multiplies at crowded places. To combat the problem in a country like Bangladesh, where hygienic practices are poor, we manufactured a user-friendly hand washing device. The public use of this device will ensure a hygienic lifestyle for people. Methods: Manufactured in Bangladesh’s Cumilla and unveiled on August 15, 2020, this “Foot Press Hand washing Device” is a system requiring only a foot pressing to operate. It was designed based on the hydraulic pressure of the air pump having two operational aspects- soap ejection and water outlet. An online cross-sectional survey on 450 individuals in three cities and a face-to-face survey in a Bangladesh village were conducted to assess users’ satisfaction. Results: A total of 73.1% and 70.1% respondents in two surveys used a hand washing device in the past six months, 71.8% and 73.8% prioritized 20-second hand washing, 37.6% and 68.7% voiced importance of health hygiene against Covid-19. A total of 71.0% and 78.1% found the device unique while 71.2% and 74.7% believed it useful against Covid-19, 68.0% and 73.3% believed it suitable for rural people, 71.8% and 73.6% believed that it could be placed in a crowded place, 44.4% and 65.1% found it user-friendly for rural people. Conclusions: The device helps restrict virus transmission by washing hands with soap water in public places. This low-cost device can be produced using locally available materials. Future studies are needed to assess its effectiveness to prevent Covid-19 and hygiene-related infections.