Afraid of the dentist? Blame your dad

Hate going to the dentist? Blame your dad. Youre more likely to fear the dentist if he freaks your father out, according to researchers at the University of Madrid.

They found that kids with dads who didnt like the dentist were twice as likely to be fearful themselves compared to kids with moms who disliked the dentist. Thats not the only thing mom and dad passed on.

Here are four things your parents are secretly responsible for.

Penis Problems According to researchers at the U.S. Department of Agriculture, penis size is up to 70 percent heritablein rams at least. While nobody has studied the pass-down percentage in human men, researchers have studied premature ejaculation and erectile dysfunction in identical and non-identical twins. The results? 30 and 42 percent of your risk for premature ejaculation and problems with maintaining your erection are caused by genetics, respectively. Go ahead, blame the big guy for your little mans problems.

The duchess visited her old elementary school, and got in on a game of field hockey while wearing designer duds and high-h...

Athletic Ability Its not your fault youre not Olympic material. Your VO2 maxaka: your aerobic potentialis up to 83 percent heritable, according to a study published in the journal Physiological and Endocrinological Aspects in Pediatric Exercise Science. The good news: Your muscle strength is only 50 percent heritable. Even if dad isnt built, you can still get ripped.

Who You Vote For Like father like sonat least when it comes to voting. Researchers at the University of California have shown that partisanship is up to 50 percent heritable. They believe the 7R variant of the dopamine receptor gene D4which only some people haveis responsible. People who carry this gene and have a diverse friend group are likely to be up to four times as liberal (as measured on a four-point scale) than people without the gene.

Mental Health According to researchers at Stanford University, depression is caused by both environmental and genetic factorssplit roughly 50-50. Researchers believe multiple genes that mom and dad pass down are responsible for depression. If you have two short copies of a gene called 5-HTTa result of both parents having short copiesyour body cant produce all of the proteins required to regulate serotonin levelsa neurotransmitter involved with mood. (A mental health screening is one of the top medical exams every man should look into.

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Afraid of the dentist? Blame your dad