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Why is the Drinking Age 21?

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In short, we ended up with a national minimum age of 21 because of the National Minimum Drinking Age Act of 1984. This law basically told states that they had to enact a minimum drinking age of 21 or lose up to 10 percent of their federal highway funding. Since that's some serious coin, the states fell into line fairly quickly. Interestingly, this law doesn't prohibit drinking per se; it merely cajoles states to outlaw purchase and public possession by people under 21. Exceptions include possession (and presumably drinking) for religious practices, while in the company of parents, spouses, or guardians who are over 21, medical uses, and during the course of legal employment.

That answers the legal question of why the drinking age is 21, but what was the underlying logic of the original policy? Did lawmakers just pick 21 out of a hat because they wanted college seniors to learn the nuances of bar culture before graduation? Not quite. The concept that a person becomes a full adult at age 21 dates back centuries in English common law; 21 was the age at which a person could, among other things, vote and become a knight. Since a person was an official adult at age 21, it seemed to make sense that they could drink then, too.

WHO WAS RESPONSIBLE FOR LOWERING THE DRINKING AGE TO 18 FOR PART OF THE 20TH CENTURY, THOUGH?

Believe it or not, Franklin Roosevelt helped prompt the change in a rather circuitous fashion. FDR approved lowering the minimum age for the military draft from 21 to 18 during World War II. When the Vietnam-era draft rolled around, though, people were understandably a bit peeved that 18-year-old men were mature enough to fight, but not old enough to vote. Thus, in 1971 the states ratified the 26th Amendment, which lowered the voting age to 18. Legislators started applying the same logic to drinking. The drinking age, which the 21st Amendment made the responsibility of individual states, started dropping around the country.

Critics of the change decried rises in alcohol-related traffic fatalities among 18- to 20-year-old drivers in areas where the drinking age had been lowered. Indeed, one result of leaving states in charge of their own age was the creation of "blood borders" between states that allowed 18-year-olds to drink and those that didn't. Teenagers from the more restrictive state would drive into the one where they could buy booze, drink, and then drive home, which created a perfect storm for traffic fatalities. Even if teens weren't any more predisposed than older adults to drive after they'd been drinking, all of this state-hopping meant that those who did drive drunk had to drive greater distances to get home than their older brethren, who could just slip down the block for a beer or six. More miles logged in a car meant more opportunities for a drunken accident.

WHO LED THE BACK-TO-21 MOVEMENT?

Organizations like Mothers Against Drunk Driving began agitating for a uniform national drinking age of 21 to help eliminate these blood borders and keep alcohol out of the hands of supposedly less-mature 18-year-olds. As a result, President Reagan signed the aforementioned National Minimum Drinking Age Act of 1984. MADD's "Why 21?" website touts that, "More than 25,000 lives have been saved in the U.S. thanks to the 21 Minimum Legal Drinking Age." Traffic reports show a 61 percent decrease in alcohol-related fatalities among drivers under 21 between 1982 and 1998. Raw numbers show that drunk driving fatalities have definitely dropped since the early 1980s; since 1982, drunk driving fatalities have decreased 51 percent. Among drivers under 21, drunk driving-related deaths have decreased by 80 percent.

Teasing out the underlying cause of this reduction in total fatalities is no mean feat, though. Non-alcohol traffic fatalities have also declined relative to the number of miles driven over the same time period, which could be attributed to any number of causes, including increased seat belt usage, the widespread use of airbags, and other safety improvements to cars and roads. Moreover, drinking and driving for the whole population might be down as the result of increased education on its consequences, harsher penalties, improved enforcement, or increased stigmatization of drunk driving.

College presidents who supported the Amethyst Initiative—a movement launched in 2008 to reconsider the national drinking age of 21—admit that drunk driving is a serious problem, but they point out that it's not the only potential pitfall for young drinkers. They contend that by lowering the drinking age, colleges would be able to bring booze out into the open and educate students on responsible consumption. Such education might help curb alcohol poisoning, drunken injuries, drinking-fueled violence, and alcoholism on campuses.

Interesting bit of trivia: the group takes its name from the character Amethyst in Greek mythology. She ran afoul of a drunken Dionysus, who had her turned into white stone. When the god discovered what he'd done, he poured wine on the stone, turning it into the purple rock we know as amethyst. Ancient Greeks wore the mineral as a form of protection from drunkenness.

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How Does Catnip Work?
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If you have a cat, you probably keep a supply of catnip at home. Many cats are irresistibly drawn to the herb, and respond excitedly to its scent, rubbing against it, rolling around on the floor, and otherwise going nuts. There are few things that can get felines quite as riled up as a whiff of catnip—not even the most delicious treats. But why does catnip, as opposed to any other plant, have such a profound effect on our feline friends?

Catnip, or Nepeta cataria, is a member of the mint family. It contains a compound called nepetalactone, which is what causes the characteristic catnip reaction. Contrary to what you might expect, the reaction isn’t pheromone related—even though pheromones are the smelly chemicals we usually associate with a change in behavior. While pheromones bind to a set of specialized receptors in what’s known as a vomeronasal organ, located in the roof of a cat's mouth (which is why they sometimes open their mouths to detect pheromones), nepetalactone binds to olfactory receptors at the olfactory epithelium, or the tissue that lines the mucus membranes inside a cat’s nose and is linked to smell.

Scientists know the basics of the chemical structure of nepetalactone, but how it causes excitement in cats is less clear. “We don’t know the full mechanisms of how the binding of these compounds to the receptors in the nose ultimately changes their behavior,” as Bruce Kornreich, associate director of the Cornell Feline Health Center, tells Mental Floss. Sadly, sticking a bunch of cats in an MRI machine with catnip and analyzing their brain activity isn’t really feasible, either from a practical or a financial standpoint, so it’s hard to determine which parts of a cat’s brain are reacting to the chemical as they frolic and play.

Though it may look like they’re getting high, catnip doesn’t appear to be harmful or addictive to cats. The euphoric period only lasts for a short time before cats become temporarily immune to its charms, meaning that it’s hard for them to overdo it.

“Cats do seem to limit themselves," Michael Topper, president of the American Veterinary Medical Association, tells Mental Floss. "Their stimulation lasts for about 10 minutes, then it sort of goes away.” While you may not want to turn your house into a greenhouse for catnip and let your feline friend run loose, it’s a useful way to keep indoor cats—whose environment isn’t always the most thrilling—stimulated and happy. (If you need proof of just how much cats love this herb, we suggest checking out Cats on Catnip, a new book of photography from professional cat photographer Andrew Martilla featuring dozens of images of cats playing around with catnip.)

That said, not all cats respond to catnip. According to Topper, an estimated 70 percent of cats react to catnip, and it appears to have a genetic basis. Topper compares it to the genetic variation that causes some individuals to smell asparagus pee while others don’t. Even if a cat will eventually love the smell of catnip, it doesn’t come out of the womb yearning for a sniff. Young kittens don’t show any behavioral response to it, and may not develop one until several months after birth [PDF].

But some researchers contend that more cats may respond to catnip than we actually realize. In one 2017 study, a group of researchers in Mexico examined how cats might subtly respond to catnip in ways that aren’t always as obvious as rolling around on the floor with their tongue hanging out. It found that 80 percent of cats responded to catnip in a passive way, showing decreased motor activity and sitting in the “sphinx” position, an indicator of a relaxed state.

There are also other plants that have similar effects on cats, some of which may appeal to a wider variety of felines than regular old catnip. In a 2017 study in the journal BMC Veterinary Research, researchers tested feline responses to not just catnip, but several other plants containing compounds similar in structure to nepetalactone, like valerian root, Tatarian honeysuckle, and silver vine. They found that 94 percent of cats responded to at least one of the plants, if not more than one. The majority of the cats that didn’t respond to catnip itself did respond to silver vine, suggesting that plant might be a potential alternative for cats that seem immune to catnip’s charms.

Despite the name, domestic cats aren’t the only species that love catnip. Many other feline species enjoy it, too, including lions and jaguars, though tigers are largely indifferent to it. The scent of the plant also attracts butterflies. (However, no matter what you’ve heard, humans can’t get high off it. When made into a tea, though, it reportedly has mild sedative effects.)

The reason Nepeta cataria releases nepetalactone doesn’t necessarily have to do with giving your cat a buzz. The fact that it gives cats that little charge of euphoria may be purely coincidental. The chemical is an insect repellant that the plant emits as a defense mechanism against pests like aphids. According to the American Chemical Society, nepetalactone attracts wasps and other insect predators that eat aphids, calling in protective reinforcements when the plant is in aphid-related distress. That it brings all the cats to the yard is just a side effect.

Because of this, catnip may have even more uses in the future beyond sending cats into a delighted frenzy. Rutgers University has spent more than a decade breeding a more potent version of catnip, called CR9, which produces more nepetalactone. It’s not just a matter of selling better cat toys; since catnip releases the compound to ward off insects, it’s also a great mosquito repellant, one that scientists hope can one day be adapted for human use. In that case, you might be as excited about catnip as your cat is.

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Why Are Mugshots Made Public Before a Suspect is Convicted by the Court?
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Jennifer Ellis:

Several reasons.

1. Mugshots can help find people when they have absconded, or warn people when someone is out and dangerous. So there is a good reason to share some mugshots.

2. Our legal system requires openness as per the federal constitution, and I imagine most if not all state constitutions. As such, this sort of information is not considered private and can be shared. Any effort to keep mugshots private would result in lawsuits by the press and lay people. This would be under the First and Sixth Amendments as well as the various Freedom of Information Acts. However, in 2016 a federal court ruled [PDF] that federal mugshots are no longer routinely available under the federal FOIA.

This is partially in recognition of the damage that mugshots can do online. In its opinion, the court noted that “[a] disclosed booking photo casts a long, damaging shadow over the depicted individual.” The court specifically mentions websites that put mugshots online, in its analysis. “In fact, mugshot websites collect and display booking photos from decades-old arrests: BustedMugshots and JustMugshots, to name a couple.” Some states have passed or are looking to pass laws to prevent release of mugshots prior to conviction. New Jersey is one example.

a) As the federal court recognizes, and as we all know, the reality is that if your picture in a mugshot is out there, regardless of whether you were convicted, it can have an unfortunate impact on your life. In the old days, this wasn’t too much of a problem because it really wasn’t easy to find mugshots. Now, with companies allegedly seeking to extort people into paying to get their images off the web, it has become a serious problem. Those companies may get in trouble if it can be proved that they are working in concert, getting paid to take the picture off one site and then putting it on another. But that is rare. In most cases, the picture is just public data to which there is no right of privacy under the law.

b) The underlying purpose of publicity is to avoid the government charging people and abusing the authority to do so. It was believed that the publicity would help protect people. And it does when you have a country that likes to hide what it is up to. But, it also can cause harm in a modern society like ours, where such things end up on the web and can cause permanent damage. Unfortunately, it is a bit of a catch-22. We have the right to know issues and free speech rights smack up against privacy rights and serious damage of reputation for people who have not been convicted of a crime. The law will no doubt continue to shake out over the next few years as it struggles to catch up with the technology.

This post originally appeared on Quora. Click here to view.

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