One of the effects of aging on the body is the reduction of height. which may overestimate the body mass index (BMI). It is hypothesized that frail elderly people are more affected by this decline in height. however this is not clear in the literature. https://www.bekindtopets.com/discount-Ancient-Roman-Gladiator-Murmillo-Cassis-Crista-Helmet-With-Medieval-Style-Skullcap-Nasal-Helmets-With-Nose-Guard-3-Re-big-savings/