For primary menstrual cramps (dysmenorrhea), over-the-counter NSAIDs like ibuprofen increase the proportion of women achieving moderate-to-excellent p…
Cost
A box of over-the-counter ibuprofen costs a few dollars, taken only during symptomatic day…
Benefit
A Cochrane systematic review pooled 80 randomized controlled trials comprising 5,820 women…
Completing cognitive behavioral therapy for insomnia reduces sleep onset latency by an average of roughly 19 minutes and cuts nocturnal wakefulness by…
Cost
Undertaking CBT-I through hospital sleep clinics, psychiatry, or clinical psychology depar…
Benefit
Diagnosis and treatment specifications for mental disorders issued by the National Health …
Obstructive sleep apnea (OSA) causes repeated airway collapse during sleep, resulting in oxygen drops, frequent micro-arousals, and severe daytime som…
Cost
Involves consultation at a sleep center, pulmonology, or ENT clinic. Diagnostic polysomnog…
Benefit
The American Academy of Sleep Medicine (AASM) 2017 diagnostic guidelines identify high pre…
Change “I plan to do this” into “If I sit at my desk at 8 a.m. on Tuesday, I’ll start by writing the introduction.” Across 94 separate studies, people…
Cost
No cost at all. Each step takes just 1–2 minutes — simply write a sentence like “If… then……
Benefit
When all 94 studies are combined, individuals who expressed their plans as “if… then…” sta…
Before you begin any project, write one simple sentence: “If a certain target isn’t met by a specific date, then we’ll stop.” Multiple studies combine…
Cost
No cost at all. It takes just 5 minutes at the start to write down: “If a certain target i…
Benefit
When data from several studies on commitment strategies are pooled together, the result is…
Money and time already spent make people more inclined to keep going. Across 98 datasets, this tendency remains consistent. Therefore, when deciding w…
Cost
No cost involved. The difficulty lies in accepting that time already invested cannot be re…
Benefit
Prior investments of money, effort, and time increase the likelihood of continued engageme…
Students who estimated they would finish a paper in 33.9 days actually took 55.5 days to complete it; only 29.7% of them met their own estimates. Anot…
Cost
No cost at all. It only requires a few minutes of review to look up how long similar tasks…
Benefit
Students originally expected to finish their papers in 33.9 days, but the actual time take…
When an agenda is shared beforehand, attendees are more likely to view the meeting as useful. In experiments, seated meetings lasted 34% longer than s…
Cost
No monetary cost. Organizers spend 5–10 minutes writing an agenda before the meeting. Stan…
Benefit
Two studies involved 958 and 292 participants respectively. Results showed that meetings w…
The more meetings you have in a day, the more exhausted you feel, and the more work seems to pile up on your plate. Canceling even one meeting frees u…
Cost
No monetary cost. Requires cooperation from colleagues and supervisors. The main difficult…
Benefit
Two surveys involved employees working 35+ hours per week – one with 676 participants, the…
When estimating how long a task will take, people rarely break it down into individual subtasks and calculate each one separately. Listing all subtask…
Cost
No cost involved. The actual breakdown process takes 5 to 15 minutes.
Benefit
People tend to overlook the need to split multi-component tasks into smaller parts when es…
When there is an external deadline, 80.6% of students manage to finish their work before it. But only 38.7% finish within their own estimated timefram…
Cost
No cost involved. The hard part is actually sticking to the deadline you set. If you ignor…
Benefit
For students with an external deadline, 80.6% complete their work before it. Meanwhile, on…
Procrastination has little to do with laziness or personality traits. What truly predicts whether someone procrastinates is how unpleasant the task fe…
Cost
No cost at all. The only change needed is in how you judge the situation: first ask yourse…
Benefit
A meta-analysis that included 691 correlation coefficients found several factors with a st…
When items are physically farther away, people tend to consume less of them. Placing snacks at a distance noticeably cuts down on intake — this effect…
Cost
No cost involved; takes just a few minutes to set up. Simply move your phone to another ro…
Benefit
A Cochrane review encompassing 24 randomized trials supports these findings. Moving food f…
A randomized trial compared two incentive models: one offering a cash reward for success, and another requiring an upfront deposit that is refunded pl…
Cost
Under this deposit‑based approach, participants must put up their own cash upfront; if the…
Benefit
In a U.S. trial with 2,538 participants, employees and their relatives were randomly assig…
The idea that “it takes 21 days to form a habit” has no scientific basis. One study tracking participants over 12 weeks found that it took as little a…
Cost
No cost at all. What’s required is simply repeating the same action every day in the same …
Benefit
Ninety-six volunteers each chose a simple action related to eating, drinking, or physical …
Procrastination severe enough to cause real distress is treatable. Following cognitive-behavioral self-help materials for ten weeks yields clear benef…
Cost
A self-help book costs just a few dozen yuan; some are even free. It takes about ten weeks…
Benefit
150 participants were randomly assigned to three groups: self-help with therapist guidance…
On average, Chinese residents spend 1 hour and 17 minutes each day doing household chores. Among those who actually do them, the average time spent is…
Cost
Outsourcing chores comes at a cost, which varies depending on the service chosen. You’ll a…
Benefit
According to a 2024 survey covering 38,500 households and 107,000 individuals, Chinese res…
On average, Chinese residents spend 5 hours and 37 minutes online each day. Among those who actually go online that day, the average rises to 6 hours …
Cost
No cost at all. The actions take just a few minutes: turn off notifications, delete the ap…
Benefit
The average daily online time for Chinese residents is 5 hours and 37 minutes; for those w…
Americans aged 15 and older watch 2.6 hours of TV per day, which accounts for half of all their leisure time. In China, the average daily TV viewing t…
Cost
No monetary cost. The real challenge is breaking the habit of turning on the TV at random …
Benefit
Americans aged 15 and older watch 2.6 hours of TV daily. Their total leisure time is 5.2 h…
Even many Word users with years of experience still rely on clicking toolbar icons. Experiments comparing different methods show that keyboard shortcu…
Cost
There is no monetary cost. However, it requires a one-time investment of several to dozens…
Benefit
Research involving 251 experienced Word users revealed that most rarely utilize faster sho…
The longer someone’s commute, the worse they tend to feel about their life. This loss in time and comfort isn’t compensated for by higher wages or bet…
Cost
This option is costly. You may end up paying higher rent or having to settle for a smaller…
Benefit
On average, Chinese residents spend 50 minutes daily on transportation; among those who tr…
By law, entertainment venues must keep all evacuation routes and emergency exits completely unobstructed during operating hours. They cannot be blocke…
Cost
No cost at all. Just take 10 seconds to look around when you enter.
Benefit
Ensuring unobstructed evacuation routes and exits is a mandatory legal obligation for venu…
By law, entertainment venues must display clear prices for all services and goods and proactively hand over a price list to customers. Most cases of “…
Cost
No cost at all. You simply need to request a price list. The tricky part is asking for it …
Benefit
The regulation states: “Entertainment venues offering services or selling goods must displ…
It is strictly illegal for entertainment venues to sell or provide drugs, or to allow anyone to use drugs on site. Violators face 3–6 months of suspen…
Cost
No cost at all. Just stand up and walk away. The hard part is having to leave in front of …
Benefit
Regulations explicitly forbid entertainment venues from selling, providing, or facilitatin…
