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Blue light from screens has little effect on how quickly you fall asleep

There has been much discussion about how blue light from screens affects our sleep, but new research shows that the impact may be smaller than we thought. Sleep experts have found that blue light causes you to fall asleep on average less than three minutes later. This means that the idea that blue light significantly disrupts your sleep is largely incorrect. Although using technology just before bedtime is sometimes linked to poorer sleep, there are other factors that have more influence, such as what you watch and notifications that can wake you up.

People often use technology to keep themselves occupied or to feel better, which can also affect their sleep habits. It is important to know that it is not so much the blue light that affects your sleep, but more how and why you use technology. Through self-control and help from others, you can use technology wisely before bedtime so that it does not negatively affect your sleep.

Modern work is unconfined work

In the past, work was often simple and predictable. There were fixed processes and predictable outcomes, as Armand Hatchuel describes. This made it easy to measure and manage performance. If there were problems, such as a broken machine or a sick employee, managers could quickly intervene to achieve the same results.

Today, work is different. Hatchuel calls this “unconfined” work. It involves jobs like knowledge work, care work, and creative work, where you don’t know in advance what the outcome will be. Innovation and surprising outcomes are often the goal. This means you only know what the result is once it’s finished. There is a lot of uncertainty about how much effort it takes to achieve these unpredictable results. For example, a home care worker doesn’t know what they will encounter with a client, a designer doesn’t know how a client will react to an idea, and a software developer can’t always predict what problems will arise with the code.

Modern work is thus unconfined because it is not tied to fixed rules or predictable results. It requires a lot of flexibility and adaptability from workers, whether the work is physical or mental. The real challenge is dealing with the absence of boundaries and navigating the uncertainties and complexities that come with this type of work.

Doing nothing is more fun than we think

Research shows that people often underestimate how much they enjoy just sitting and thinking. In a series of experiments with students, participants thought they would be bored if they had to wait in a quiet room. But in reality, they found it much more enjoyable than they expected. This shows that we often do not appreciate how important it is to take a moment to pause and reflect.

The idea of “niksen,” a Dutch word that means consciously doing nothing, fits well with these findings. Doing nothing can be seen as a way to give our minds a break, so we can relax and let our thoughts wander without distractions from the outside world. This is different from the modern habit of always being busy and seeking distractions, such as constantly checking internet news. By doing nothing, we can improve our mental health, as it gives us the opportunity to organize our thoughts and become more creative.

We often underestimate how valuable doing nothing can be, because we do not realize how interesting and enjoyable our own thoughts can be. People usually choose activities to keep busy, often because they are afraid of getting bored. But doing nothing can be surprisingly enriching, as shown by the positive responses of people in studies. If we learn to appreciate moments of rest more, we can learn to enjoy simply thinking and reflecting. This can ultimately contribute to a more balanced and satisfying life.

Speeding up informative videos does not affect material comprehension

Playing videos faster can be useful to save time. Research shows that you can watch videos at 1.5x or even 2x the normal speed without understanding less. This way, you can go through the videos faster and use the extra time to study more or watch the videos again. But be careful: if you go faster than 2x, you may not understand what is being said as well.

It is important to know that these results can vary. This depends on how difficult the videos are, how fast the speech is, and how much visual and audio content there is simultaneously. Often, comprehension issues arise from a lack of background information. Therefore, it is wise to first watch videos at a faster speed and then spend extra time on the difficult parts or review them, especially right before a test.

Spend at least 2 hours per week in nature

Spending at least two hours per week in nature can have significant benefits for health and well-being. A study in the United Kingdom, which surveyed nearly 20,000 participants, found that people who spent at least 120 minutes per week in nature reported better self-reported health and well-being. The likelihood of reporting good health or high well-being significantly increased with 120 minutes or more of nature contact per week. These positive associations peaked between 200 and 300 minutes per week, with no further gain from additional time in nature.

It doesn’t matter how these 120 minutes per week are achieved; both one long walk and multiple shorter visits per week can provide the same benefits. This suggests that the flexibility in planning nature visits makes it easier for people to integrate this habit into their busy lives.

Start meetings on time for higher satisfaction and effectiveness

Starting meetings on time significantly contributes to both the satisfaction and effectiveness of the participants. Research shows that when meetings start late, this leads to lower satisfaction with the outcomes of the meeting. Participants not only have a negative attitude towards the meeting itself, but also towards the results that come out of it. This is because a late start is often accompanied by negative socio-emotional behaviors, such as frustration and impatience, which can undermine productivity and collaboration within the group.

In addition, experimental studies show that starting meetings on time has a positive influence on the expected and actual effectiveness of the meeting. When meetings start on time, participants feel more respected and motivated, leading to a more constructive and efficient collaboration. Adhering to the scheduled start time can therefore be a simple but powerful way to improve the overall quality of meetings, which ultimately contributes to better decision-making and higher satisfaction among participants.

Do not set SMART goals

The use of SMART goals (Specific, Measurable, Achievable, Realistic, Time-bound) is a popular way to set goals. However, there are reasons not to use this method. Firstly, the SMART principle is not based on strong scientific theories and does not align with research findings. This means that the effectiveness of SMART goals has not been well-proven by scientific research, which can lead to poorer results and confusion when using them.

The SMART framework does not take into account the type of goal being set and is often not applied consistently. This lack of consistency and clarity can result in goals that do not fit well with the personal needs and situations of the people trying to achieve them. Moreover, the SMART acronym does not provide enough detailed guidance, which can lead to a superficial approach to goal setting and a higher risk of negative effects, such as demotivation or stress if the goals are not met.

Finally, SMART goals are often not used as intended and sometimes contain redundant criteria. This can lead to inefficient and confusing objectives. Instead of sticking to a rigid and possibly flawed system, it is more useful to use more flexible and tailored methods for setting goals. These methods better fit the specific situation and needs of the people.

Good sleepers are more productive and earn more

Various studies on sleep habits and work performance show that good sleep has a significant impact on how well people perform their jobs. A study by Rosekind et al. (2009) examined the sleep habits of more than 4,000 knowledge workers. They found that people who sleep well not only earn more but also perform much better than their colleagues who sleep poorly or too little, or suffer from insomnia. These good sleepers are better at time management, physical and mental performance, interpersonal skills, and their work output. These improvements are much more convincing than, for example, the benefits of shorter meetings.

Data shows that people with insomnia and insufficient sleep perform much worse at work and work less safely. They also use sleep medication more often, while others more frequently opt for non-medication treatments. Due to fatigue, employees lose an average of $1967 per year in productivity. This shows how costly sleep deprivation can be for both employees and employers.

The importance of good sleep cannot be emphasized enough. Sleeping in is seen as a major gain because it not only improves your performance and well-being but also has economic benefits. Employees who get enough and good sleep can do their work better and faster. This leads to higher productivity and ultimately more income.

Looking forward to your vacation and making travel plans often makes you happier than the trip itself

People are often happier when planning a vacation than during the vacation itself. Research shows that people who are going on a trip are happier in the time before their vacation than people without travel plans. This is because they are looking forward to a good time. By planning a vacation, people can dream about new experiences. This makes them happy.

When people prepare for a vacation, they are busy choosing places to go and what they want to do there. They imagine how fun it will be. This preparation time makes people excited and happy. They look forward to getting away from their regular life and seeing new places.

After the vacation, people are often not happier than before, except if the vacation was very relaxing. There is usually no difference in how happy people are after their vacation compared to people who did not go away. This is because people quickly get used to their normal life. It seems that planning a vacation makes people the happiest, even if the vacation itself is sometimes less enjoyable than expected.

Well-rested people are more positive

People who sleep well are often more positive, and this is due to how sleep affects their brains. Research shows that sleep deprivation mainly affects the part of the brain that processes positive and neutral memories, the hippocampus. The part that remembers negative things, the amygdala, is less affected. As a result, people who do not get enough sleep have more difficulty retrieving positive memories, but negative memories remain well ingrained. This means that lack of sleep has a negative impact on their mood and how they see the world around them.

Walker conducted an experiment that clearly demonstrates this effect. In this study, sleep-deprived students had to remember a list of words. The results showed that these students could remember 81% of words with a negative meaning, such as “cancer,” but only 31% of words with a positive or neutral meaning, such as “sunshine” or “basket.” This difference in memory performance shows how sleep deprivation causes people to focus more on negative information, which can lead to a more pessimistic worldview and a less positive mood.

Many people notice that they feel happier and more positive after a good night’s sleep. This is because enough sleep helps the brain process positive and neutral memories well. This allows you to look at the world more optimistically and balanced. In short, getting enough sleep is very important for maintaining a good mood and seeing the world in a balanced way.