HealthJuly 15, 2026

hemoglobin

/ˈhiːməˌɡloʊbɪn/

Definition

A protein in red blood cells that carries oxygen throughout the body; in this study, its concentration was used as a key biomarker to assess an individual's overall physiological health.

Etymology

Derived from the Greek 'haima' (blood) and the Latin 'globus' (sphere). The term was coined in the 19th century to describe the globular protein structure found within blood.

In the news

Researchers measured hemoglobin concentration as one of ten physical health indicators to calculate the participants' physiological age. It serves as a data point to determine how well the body is functioning at a cellular level.

Going to museums, movies, and theater may help your body stay younger

Read the full article ↗

ScienceDaily

Related words

Learn a word like this every day

Meet one new word every morning.

Newspoken pulls one carefully chosen word from the day’s news — with a clear definition, context, and light review that makes it stick. Get it on your phone.

Not for marketing. One email on launch day.