Washing clothes with a washboard will make your arms and shoulders thinner. The use of washboard does involve some arm and shoulder activities. The number and time of washing clothes with washboard will have a significant slimming effect on your arms and shoulders. The washboard is a traditional washing tool, which mainly rubs clothes on the washboard by hand to clean the stains on the clothes. To lose weight and keep fit, the most important thing is to maintain a balanced diet, carry out proper aerobic exercise and strength training, and take a proper rest, so that full-body exercise can help you achieve the goal of losing weight more effectively.