He was the first in his field to use twins to document how faces can be affected by environmental factors like sun, stress, and smoking.

[9] In 2014, the Smithsonian Institution's National Museum of Natural History invited Dr. Antell to join the exhibition "Genome: Unlocking Life's Code.

[19] In 2014, the Smithsonian Institution's National Museum of Natural History invited Dr. Antell to join the exhibition "Genome: Unlocking Life's Code.

[12][13] Partial list, current as of 2023: Antell demonstrated that lifestyle is a greater determining factor than genetics in aging.

It also suggested that alcohol, stress, diet and exercise, among other factors, could be an influence, and such lifestyle choices may alter the expression of certain genes and gene-environment interaction.