The five-second rule, or sometimes the three-second rule,[1] is a food hygiene myth that states a defined time window after which it is not safe to eat food (or sometimes to use cutlery) after it has been dropped on the floor or on the ground and thus exposed to contamination.

There appears to be no scientific consensus on the general applicability of the rule,[2] and its origin is unclear.[3][4][5] It probably originated succeeding[clarification needed] germ theory in the late 19th century. The first known mention of the rule in print is in the 1995 novel Wanted: Rowing Coach.[6]


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Researchers at Rutgers University debunked the theory in 2016 by dropping watermelon cubes, gummy candies, plain white bread, and buttered bread from a height of five inches (13 cm) onto surfaces slathered in Enterobacter aerogenes. The surfaces used were carpet, ceramic tile, stainless steel and wood. The food was left on the surface for intervals of 5, 30 and 300 seconds. The scientists assessed the amount of E. aerogenes transferred between surface and food. Since bacteria tended to be attracted to moisture, wet food had more risk to have bacteria transferred than dry food. To the surprise of the researchers, carpet transferred fewer bacteria than steel or tile. Wood was hard to pin down as it showed a large variation. "The five-second rule is a significant oversimplification of what actually happens when bacteria transfer from a surface to food," Donald Schaffner, a Rutgers University biologist and an author of the research, stated in the Washington Post, "Bacteria can contaminate instantaneously."[12]

A 2014 study by biology students at Aston University in England suggested that there may be a basis for the five-second rule.[15] Anthony Hilton, head of microbiology at Aston University, indicated in 2017 that food dropped on a seemingly clean floor for a few moments can be eaten with minimal risk.[16] According to Hilton, moist foods that are left on the floor for more than 30 seconds are contaminated with 10 times more bacteria than food that has been left on the floor for 3 seconds.[17]

The five-second rule was featured in an episode of the Discovery Channel series MythBusters, which discovered that there was no significant difference in the number of bacteria collected. The aspects that affect the contamination process is the moisture, surface geometry and the location.[18] An episode of Food Detectives found that bacteria will cling to food immediately.[19]

Almost everyone has dropped some food on the floor and still wanted to eat it. If someone saw you drop it, he or she might have yelled, "5-second rule!" This so-called rule says food is OK to eat if you pick it up in 5 seconds or less.

In households, restaurant kitchens, and almost anywhere people prepare or consume food, you'll occasionally hear someone call out "five-second rule." Whether it's uttered as a way for the speaker to let others know he's civilized, as an excuse to salvage expensive food, or as an incantation to ward off sickness, the meaning is the same: If food hits the floor and you snatch it up in less than five seconds, it's safe to eat."

Yes, someone really has conducted a scientific study of the five-second rule. It was the project of high school senior Jillian Clarke during a six-week internship in the food science and nutrition department at the University of Illinois at Urbana-Champaign. Meredith Agle, then a doctoral candidate, supervised the study.

To control the study, cookies and gummi bears were placed on both rough and smooth sterile tiles covered with measured amounts of E. coli. "We did see a transfer of germs before five seconds," Agle tells WebMD. "We were dealing with a large number of cells."

Clarke also conducted a survey in which 70% of women and 56% of men said they were familiar with the rule. Women were more likely to invoke it. Not surprisingly, people are inclined to eat dropped cookies and candy more often than dropped broccoli and cauliflower.

Robert Romaine first heard the five-second rule when he became a San Diego County health inspector, a job he held for more than 25 years. "I don't think anyone in the restaurant business really believes the five-second rule, but restaurant operators are concerned about the bottom line. So they might be reluctant to throw away food, even though they know the risk."

"I still pick up food off the floor," says Agle, "but I'm not in the susceptible population. I think the take-home message is that floors are generally clean but if there are microorganisms present, they will transfer in less than five seconds."

Since then, the talk has gone viral and Mel Robbins has released her own book, The 5 Second Rule, to better explain the steps and benefits of using this simple rule. The book has become a bestseller in the self-help book category, and celebrates selling nearly 2 million copies, as well as being published in 33 different languages. Robbins has since gone on to release a more in depth way of using the 5 second rule in her latest book, The High 5: Take Control of Your Life with One Simple Habit.

The 5 Second Rule is simple. If you have an instinct to act on a goal, you must physically move within 5 seconds or your brain will kill it. The moment you feel an instinct or a desire to act on a goal or a commitment, use the Rule.

Mel Robbins explains that she first started to use the 5 second rule as a way of getting out of bed at a time that was both difficult for her and her family. The process was simple. Counting backwards from 5-4-3-2-1 and immediately acting at the end of the count, and before the mind creates a reason not to act.

Throughout the book, Robbins explains that you, just like everyone else, have 5 seconds to act out before your mind convinces you to do otherwise. It creates a process to combat the subconscious mind, and forces us to act on our ideas.

The main aim of the 5 second rule is to break our thought pattern while making a decision. Often when we come to thinking of things we need to do, we may come up with reasons to put this particular task off, even though we know the task has to be done and by doing so has benefits to us. Using the 5 second rule in these moments acts as a prevention for talking ourselves out of doing something.

As you can see, the areas we can apply this rule to in our life is varied. Take a moment and think about a time when you wish you had taken action on a task, but didn't. Next time you are in that situation, use this method and see if it is beneficial to you.

Take a moment and think about the last time you had a brilliant thought that you failed to act on. What stopped you from taking action? In what ways would your life be different if you followed this rule more often?

Last time around, I posted a thread elaborating on my discovery that the ultimate skill gap between good and great players lies in movement. Today's post a follow up to that post, wherein I suggested something called the "two-second rule" to help you get better at movement.

Like we touched on in the previous post, the two second rule is essentially encouraging you to move more. It's part of a greater subset of good movement which helps you to be less predictable and static in everyday Crucible.

Essentially, the rule makes me move around the map more. I know a lot of you will have anxiety doing this, because you're moving more than you're used to. You might think that moving more doesn't work for certain playstyles either, like sniping. Sniping is about finding a lane, and a lane can be defined as the unobstructed view between any two points on a map. So if you're moving around the map, what you're really doing is opening up the possibilities for you to pick and choose which lane you want to engage down.

If you're in lower skill brackets and you start whizzing around the map with the two second rule, the results will be immediate. You may see a 50% boost in your efficiency simply because you started getting more involved. In higher skill brackets, the two second rule is more or less the standard for good play and not the exception. And even then, there will be times you need to adapt and change the parameters of this rule to be quicker, or slower.

The Two-Second rule is a device to help you gain better movement and target acquisition. The whole point of becoming better at PvP is to gain more confidence to help you win more fights. A great place to begin would be to go out and find more fights to get your ass kicked till you can start returning the favour consistently. The Two Second rule helps you find fights, but it should not be used to dictate them entirely.

Once you've found a target to engage, the rule is now entirely optional. In the interest of improvement and consistency, you should try and finish your fights within two seconds or less - either get the kill, or disengage entirely. Any longer and other guns start to come into play. But sometimes, you do need to hold your ground or keep put.

Do not be afraid to apply the two-second rule to your thought process as well - if you can't come up with a good course of action within two seconds from your current location, move to a new one and try again. Ideally, you'd be strategizing en route to the action whilst practicing the two-second rule, but that's part of the larger topic of game sense.

In 6s, you're entering a pretty chill experience. You don't really have a whole lot of agency over a game, and there's no pressure. You're free to do what you want. It's the perfect environment to kick back, throw on that Vigilance Wing and tickle people from afar until you start learning how to kill with it. Also great for experimenting with new ideas, like the two second rule.

Which basically means I need to come up with a plan of action and stick to it. With the two-second rule, you have a window to pause and figure it out if you're not already strategizing on the fly. In 6s, I start with two seconds. In 3s, I reduce that to one second. In Trials, I try never to take longer than a second if I'm on my own. In Comp, it's the same. In Rumble, I try not to stop at all since there's really nothing to it - kill or be killed. e24fc04721

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