People Share Practical Truths They Learned That Everyone Should Know.

It's always nice to learn something that might change how you live your day-to-day life. Here, people share the most practical truth they've ever learned that everyone should know.


1. There is a .gov website that allows you to type in any doctor's name and see the type and monetary value of any kickbacks or perks that the doctor received from pharmaceutical companies/ drug reps, and the name of the company that gave the perks.

The website is This becomes relevant in examining your doctor's motives for prescribing certain drugs. For example, if your doctor is pushing OxyContin instead of a lighter or different drug, and you see that he received $5,000 from Purdue Pharma (maker of OxyContin), you might get kind of suspicious and ask your doctor about it directly. If they received $50,000, you might be wise to just switch doctors. Of course, this pertains to any medication, not just narcotics.


2. If you use Amazon, make sure to shop from

You pick an organization (such as the ACLU) and they will donate a percentage of your purchase to them.


3. If you are ever exposed to HIV, male or female, going to a doctor or ER and receiving the 'HIV Plan B', Post-Exposure Prophylaxis, will severely reduce your chances of contracting the disease.

This is not a substitute for proper needle handling or safe sex.

Post-Exposure Prophylaxis (PEP) involves taking anti-HIV medications as soon as possible after you may have been exposed to HIV to try to reduce the chance of becoming HIV positive. These medications keep HIV from making copies of itself and spreading through your body.

To be effective, PEP must begin within 72 hours of exposure, before the virus has time to make too many copies of itself in your body. PEP consists of 2-3 antiretroviral medications and should be taken for 28 days. Your doctor will determine what treatment is right for you based on how you were exposed to HIV. PEP is safe but may cause side effects like nausea in some people. These side effects can be treated and are not life threatening. PEP is not 100% effective; it does not guarantee that someone exposed to HIV will not become infected with HIV.


4. Essential oils are called that because they are the "essence" of a plant, NOT because they are "essential" to human health.

There are a lot of alternative medicine practitioners who deliberately take advantage of the misleading name "essential oils". While some essential oils do indeed have health benefits, most of them don't do anything at all and some of them can actually be harmful.


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5. If you're staying at a hotel and front desk calls to verify your credit card details, it's a scam.

Just had "front desk" call me on my room phone at the Hilton Garden Inn in Tampa at 7:45am to verify my details as "our system went down last night".

Hung up and called the operator and they told me they hadn't patched through anyone from an outside line, so apparently scammers are now booking hotel rooms and calling from inside the hotels.


6. The abbreviation "e.g." is short for 'exempli gratia' and is used to mean "for example." The abbreviation "i.e." is short for 'id est' and is used to mean "that is to say."

These abbreviations are commonly misused interchangeably, but they mean different things. Mnemonic devices to help keep them straight:

e.g. = "example given"

i.e. = "in essence"

Source 1, 2

7. If you find a lost ID...

In the United States, you can put a lost ID in any mailbox and the postal service will deliver it to the mailing address on the card .


8. In states that have legalized marijuana it is still very illegal in any national parks, monuments and forests; and park rangers are federal police.

In federal land (National Parks, National Monuments, Bureau of Land Management lands, National Forests, etc) federal law is enforced and marijuana is still a schedule one drug.

If you get busted by a ranger on federal land you must appear in court, which will be the courthouse of whatever district you were busted in, these areas are very large. There is no paying the fine without trial even though it will probably be a minor fine, same with speeding tickets and any other infraction, so don't mess around of federal land.


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9. A person with a disabled placard on their car may not always have a disability you can see.

My 52-year-old uncle has had lung disease for six years, and his lungs only get around 45 mm/Hg. I've heard people commenting when he gets out of the car "HE doesn't look disabled" insinuating that he's faking a disease or has a fake placard.

Lung disease, cardiovascular issues, and other non-visible issues qualify a person (rightfully) for a disabled placard.


10. If one of your calves is swollen or hot and feels "tight" and you don't know why, you need to go to a hospital.

Those are symptoms of a deep vein thrombosis blood clot. I've had to take my dad in a few times for them, yet I don't hear them get as much attention as chest pain for heart attacks, even though if the blood clot breaks of and makes it to your heart, that's probably what you'll have.

One made it to my dad's lungs and caused a pulmonary embolism. Consider the warning signs more severe if you've recently been sitting down without moving for a long time (like in an airplane) or if you've recently had surgery.

Source 1, 2

11. In most major U.S. and Canadian cities, it is common courtesy to use the right-hand side of an escalator for standing and the left-hand side for walking.

This is less of a fact and more of a common courtesy that is shared in many U.S. cities, and different cultures may handle this different ways, so I am just speaking about the United States here.

Typically, the right-hand side of the escalator should be reserved for people who don't feel like walking up or down the escalator. The left-hand side should be left open for people who wish to walk up and down the escalator to get where they are going more quickly.


12. How to tell if a number is divisible by another number:


1 - Always.

2 - If the number is even.

5 - If the number ends in 5 or 0.

10 - If the numbers ends in 0.

Less Obvious:

3 - Add all of the digits in the number. If the result is divisible by 3, then so is the original number. (Note that this rule can be repeated with the result if you still don't know.)

4 - If the last 2 digits of the number are divisible by 4, then so is the entire number. If you don't know then halve the last 2 digits twice. If you still have a whole number then it is divisible by 4.

6 - If the number passes the '2' rule and the '3' rule, then, yes.

8 - If the last 3 digits of the number are divisible by 8, then so is the entire number. If you don't know then halve the last 3 digits three times. If you still have a whole number then it is divisible by 8.

9 - Add all of the digits in the number. If the result is divisible by 9, then so is the original number. (Note that this rule can be repeated with the result if you still don't know.)


7 - Remove the last digit from the number. Take the number formed by the remaining digits and subtract by 2x the removed digit. If the result is divisible by 7, then so is the original number.

Example (889):

88-(9x2) = 88-18 = 70

=> 889 is divisible by 7.


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13. Disposable razors last for months if you leave them resting in baby oil when not using them.

Steel razors are incredibly durable.

And your stubble, no matter how manly, is not enough to chip or pit steel. When your razor wears out, it's not because of your use.

It's because of how you treat the razor after you're done using it. Most people rinse it, maybe blow on it, then stick it back in the cabinet. This leaves little drops of water on the steel, causing it to rust and pit and wear out.

So if you want your razors to last as long as possible, store them in a little cup of oil. Baby oil or mineral oil. The water can't sit there under oil, so it'll come right off. The oil itself won't hurt your blade. The blade will last an astoundingly long time.

But it only takes once or twice of not doing that to wear the blade down.

I've used a single disposable razor for over a year with this method. The only reason we still buy disposables is because my wife is too lazy to be bothered to do this. Her razors go bad after one use - she leaves them sitting in the shower. Same exact razors - all disposables from the same packaging. I'm convinced it would've lasted longer than a year too, the only reason it didn't is because my wife ran out of razors and she took the one I'd set aside. She left it in the shower again and it wore out immediately.

Oil your blades.

Carnifax23, /u/itty53

14. If you see someone you think is committing a crime, look at their shoes. It's a clothing item they can't easily change or take off.

Earlier today I saw two kids who had just broken into someone's car near my house. On my bike I accidentally followed them for a block and realized what was going on and circled back to find them. By then they had ditched the bags in an alley. I waited for the cops since there was some woman's stuff strewn all over in an alley, including her work ID.

When the officer showed up they asked about a description. The kids had taken off their shirts so as to make it harder to find them if they put them on later. She said, "this is the thing that always gets them, did you see their shoes?" I totally missed them, but two kids in dark jeans holding white shirts in their hands isn't too much to go on - but it's not like they were going to bring an extra pair of shoes.


15. Taxes don't have to be such a pain.

Many local universities offer complimentary help with your taxes to allow their accounting students additional experience. The process is usually overseen by an expert to ensure accuracy.

It is worth noting that you must meet a specific criteria to be eligible for these services. They are mainly offered to low-income individuals and students.

Source 1, 2

16. Bacteria is resilient.

Any bacteria who survive your antibiotics can breed an immune strain. This is why you ALWAYS finish the course of pills your doc gives you.

Don't stop when you "feel better". Don't save the rest for another illness. One day soon people will get sick and nothing will help. Maybe very soon.



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17. You don't have to do it alone.

If you're trying to quit smoking you should register for texts from You'll receive motivational texts a few times a day as well as support when you text "crave". Worth a shot if you're serious about quitting. It's helping me.


18. The HPV vaccine is just as useful for men as is it is for women.

HPV is transmitted between people. Thats means guy gives to girl, girl gives to another guy ect. If one of those people are vaccinated you can cut the transmission rate down. Even if the vaccine's target are the strains that typically effect women, it is still better for men to NOT be a vector.

Also some strains can cause dick warts.


19. It is not safe to use document shredding services at places like Staples and FedEx office

Many people bring their secure documents to office supply stores for shredding. It's affordable, usually under $1 a pound. The problem is that they don't do the shredding. They place the documents into a basic plastic garbage bin with a very cheap lock. A friend works at one of these stores and last week, they had a break-in and the only thing taken was that bin. Who knows what critical documents and data were in there.

If you want to ensure your documents get shredded and you have too many for your home shredder, go to a place that will shred it for you on the spot. Banks and other organizations also often have free shredding events where they bring a big machine to location and shred on the spot.


20. Drowning Doesn't Actually Look Like Drowning.

Except in rare circumstances, drowning people are physiologically unable to call out for help. The respiratory system was designed for breathing. Speech is the secondary or overlaid function. Breathing must be fulfilled, before speech occurs.

Drowning peoples mouths alternately sink below and reappear above the surface of the water. The mouths of drowning people are not above the surface of the water long enough for them to exhale, inhale, and call out for help. When the drowning peoples mouths are above the surface, they exhale and inhale quickly as their mouths start to sink below the surface of the water.

Drowning people cannot wave for help. Nature instinctively forces them to extend their arms laterally and press down on the waters surface. Pressing down on the surface of the water, permits drowning people to leverage their bodies so they can lift their mouths out of the water to breathe.

Throughout the Instinctive Drowning Response, drowning people cannot voluntarily control their arm movements. Physiologically, drowning people who are struggling on the surface of the water cannot stop drowning and perform voluntary movements such as waving for help, moving toward a rescuer, or reaching out for a piece of rescue equipment.

From beginning to end of the Instinctive Drowning Response peoples bodies remain upright in the water, with no evidence of a supporting kick. Unless rescued by a trained lifeguard, these drowning people can only struggle on the surface of the water from 20 to 60 seconds before submersion occurs.


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21. When to use "You and I" vs. "You and me" :

Whichever sounds right without the "you and" is correct. "He gave pizza to you and me" is correct because "he gave pizza to me" sounds right.


22. When typing, holding CTRL + hitting backspace deletes one entire word at a time.

Rather than just holding the backspace button and hoping to stop at the beginning of a word, just hold CTRL and hit the backspace button.


23. If you blow out a tire or damage your car on a pothole, some cities will pay for the damage.

Los Angeles does this, and I'm sure other cities have similar policies as well. Just call 311!


24. Chocolate Diamonds are a jewelry industry scam.

Brown diamonds are the most common diamonds, and the "Chocolate Diamond" was marketed perfectly to sell something above its actual worth, since brown is an undesirable color.

It's actually kind of brilliant though the way they were able to market garbage to us as valuable. In all fairness though, some are actually worth something based on treatment and such, but all in all, they managed to take a worthless rock that was never able to sell, and market it so perfectly that it's now a desirable piece of jewelry. Admirable, but still something you should know about before purchasing.


25. It's not you. Claw machines are rigged. Here's why it's so hard to grab that stuffed animal.

The claw is programmed to grab tightly only part of the time. Some people think the claw machine is so hard to win because the stuffed animals are packed so tightly together. But the bigger reason is more insidious than that: the claw machine is programmed to have a strong grip only part of the time.



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When you're a kid most adults will tell you one thing or another is "cool" and "fun." Odds are you're too young to form any kind of opinion on the matter one way or another. You're a kid, right? You don't know what you're eating for breakfast. However, when you get older and form that larger worldview, you realize that yeah, maybe that one time when you were a kid actually wasn't fun.

These are those stories.

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