We tend to overestimate our height and underestimate our weight to fit society’s ideals, or because we think we’re still the same as our younger selves
Source:
https://www.newscientist.com/article/2242110-men-are-worse-than-women-at-estimating-their-height-and-weight/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home