Why do people sport 4-, 6- or even 8-pack abs?

The number of washboard abs you can show is determined by your DNA, according to research.

Why do people sport 4-, 6- or even 8-pack abs?

Why are only 6 packs popular when there are 4 packs, 8 packs, 12 packs, etc.? - Quora

What Body Fat Percentage Do I Need to See Abs?

How to Build an 8 Pack Abs and Why Only a Few Have Them

Abs Explained: 10 Pack Abs, Is It A Myth? - SET FOR SET

Six-Pack or Eight-Pack Abs? Knowledge You Must Know, by Jacob

Body Weight Exercise: Want Flat Abs Without Going To The Gym? Here Are 6 Body Weight Exercises You Can Do

4 Pack vs 6 Pack vs 8 Pack Abs Explained - Steel Supplements

5 Facts About Your Abs That May Surprise You

Will Low Body Fat Automatically Give Me 6-Pack Abs?

4 Pack vs 6 Pack vs 8 Pack Abs Explained - Steel Supplements

Is it possible for a kid to get six-pack abs? - Quora

4 Pack vs 6 Pack vs 8 Pack Abs Explained - Steel Supplements

4 Pack Abs vs 6,8,10 Pack: Men & Women Genetics, Body Fat Percentage

How Many Abs Can You Have? 4-Pack vs 6-Pack vs 8-Pack – Fitness Volt