Can’t you be both ok with who you are and have beautiful hair at 20?

The idea of junk DNA is based on the fact that it doesn’t code for any proteins, but many other functions have been found for it (small nuclear RNA, microRNA, small interfering RNA, etc.). Some parts of the genome are not transcribed into anything but still have a functional purpose, such as in telomere caps and in folding. And there are large parts with no known purpose, they might be remnants of working genes, and they might have a function in evolution (see the “might”). One research project (Encode) found that around 80% of the human genome is transcribed, but the argument against this is that DNA being transcribed may not necessarily mean it has a function. The theory of junk DNA hasn’t diseapered but it isn’t necessarily true either.

I am just a student, so take my info with a pinch of salt.

Not necessarily, can also be hemorrhoids from too much sitting and a bad diet.
But you (and I) should definitely see a doctor.

What causes hemorrhoids?
Pressure building up in your lower rectum can affect blood flow and make the veins there swell.
That may happen because of:

• Pushing when you poop
• Straining when you do something that’s physically hard, like lifting something heavy
• Extra weight, like obesity
• Pregnancy, when your growing uterus presses on your veins
• A diet low in fiber
• Anal

Risk Factors:

• Too much sitting
• Age
• Pregnancy
• Genetics