Evidence from the National Health and Nutrition Examination Survey suggests that depression and anxiety in young adults may affect telomere length.

"Health span" is a term that describes how long we remain healthy, enjoying life, doing what we want to be doing, thanks to overall body and eye health. This is in contrast to "life span," which refers to how long we live.

Zinc deficiency was first described in humans in the early 1960s in people consuming plant-based diets. Since then, tremendous advances have been made both in our basic and clinical understand of zinc metabolism, and we now understand that zinc is used in ​more than 300 enzymatic reactions and multiple biochemical structural processes in the body.