About Me

Welcome to my blog! This is where I collect my observations and notes on programming and technology. The main subjects range from implementation details to broader ideas about programming.

Main Topics

• Engineering Projects: Exploring implementation details and how technical systems work.
• C/C++: Notes on language features and programming techniques.
• The Programmer’s Perspective: Ideas about developing a career and a way of thinking as a programmer.

For more, visit the categories page.

Contact

If you have questions or would like to discuss something, please get in touch through the About page.

Thank you for reading and for your support. I hope these notes help you on your own technical journey!

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This is a translation of a personal lifestyle essay written in August 2023. It retains the author’s experiences and identifies the numerical health claims recorded in the original. Many of those claims had no source and should not be treated as verified medical advice or individual risk predictions. Editorial notes distinguish personal habits from current guidance.

Begin with a foundation

People have different ideas about life and different ways of understanding the world. Living can be a process of pursuing and testing those ideas, even when we do not explicitly describe it that way. One foundation we share is the value of health.

I wrote this essay to think about sustaining work and study over many years. Using my student life as an example, I tried to balance time, money, attention, and a routine that left room for my ambitions. The title refers to a long campaign: how to keep going without exhausting the person doing the work.

Everyday meals

Breakfast

I wanted a quick, dependable breakfast. Cooking porridge and an egg at home sounded good, but I felt the preparation took too much time. Other possibilities were bread, porridge and steamed buns from a breakfast stall, or food from the campus canteen.

At the time I was suspicious of packaged bread and flavored instant oatmeal because of their ingredients. That preference should not be confused with evidence that every additive or packaged food is harmful, or that a campus canteen is automatically safe. Overall nutritional composition and food handling matter.

My usual choice was plain oats without added sugar. I put about half a cup into a mug, checked the hot-water dispenser, washed, and let the oats soak while handling messages or small tasks. I liked the low preparation cost, especially before an early class.

Oats provide carbohydrate and fiber as part of a diet, but one serving does not automatically supply everything needed. The original claim that breakfast is not about energy is also too absolute: food supplies energy as well as fitting a daily routine.

Lunch

At the campus self-service counter I tended to choose meat and very few vegetables. I was a picky eater and sometimes deliberately ordered an all-vegetable meal to compensate. In mixed meals I often left the stems or vegetables behind, which I recognized as wasteful.

For a spicy mixed dish, I preferred ordinary chicken or pork with tofu and bean-curd skin over processed meatballs or sausages. My intention was to obtain protein, fat, carbohydrate, and other nutrients. This describes my habits; a plate dominated by meat is not a balanced template for everyone.

Dinner

I often chose beef noodles with a boiled egg because it was inexpensive, convenient, and did not leave me feeling overly full before later exercise.

The source contrasts protein for muscles with carbohydrate for the brain, then suggests that muscular people do less intellectual work. That stereotype has no basis in the essay and should not be accepted. Both physical and mental activity depend on an adequate overall diet, not on a competition between muscles and intelligence.

Gaps and supplements

I recognized that I ate too few vegetables. I bought vitamin C and B-complex chewable tablets, usually taking one every other day or less often, partly because I forgot. I also took lutein-related tablets because I spent much of the day at a computer. The products together cost a few tens of yuan in my account.

These were personal choices, not a tested treatment plan. Supplements do not replace a varied diet, and an arbitrary alternate-day schedule does not establish nutritional adequacy. The source’s statement that vitamin C prevents colds or treats illness is overstated: NIH’s vitamin C overview explains that routine supplementation does not prevent colds in most people, though some effects on duration have been observed. Avoid assuming that more tablets mean greater benefit.

A varied pattern including vegetables, fruit, whole grains, and appropriate protein sources is a better starting point than compensating for an unbalanced diet with pills. See WHO’s healthy-diet guidance.

Eating quickly

I used to race through meals. In high school during the early pandemic, our small year group collected boxed meals in an auditorium; I sometimes finished while other students were still collecting theirs. A friend and I even competed, and he usually beat me by a couple of mouthfuls.

During my first university year, discomfort after a meal made me notice how little I had chewed. I began slowing down and paying more attention to eating. My practical suggestion was to put the phone away and focus on the meal. The original links rapid eating directly to several diseases and mortality without a source; that causal conclusion should not be inferred from this anecdote.

Fruit and vegetables

The essay cites a 2014 systematic review in The BMJ on fruit/vegetable intake and mortality. It records relative reductions of 8%, 15%, 20%, and 23% for one through four daily servings, an average of about 5% per additional serving, and a plateau around five servings. These are population-level observational associations as presented in the source, not percentages a person can add up to predict their lifespan.

I estimated a medium banana at about 150 g and an apple at about 220 g, then compared those weights with serving counts. Actual edible weights and the study’s serving definitions matter.

I found washing and handling fruit inconvenient, but tried to spend around ten yuan a week on it. On my campus that could buy roughly seven to nine bananas or three to four apples. I rotated among bananas, apples, cherry tomatoes, and peaches. The point of the account is finding a habit I could sustain; the original suggestion that daily fruit is unnecessary is not a substitute for considering total fruit and vegetable intake.

Exercise

I wanted movement that fitted a busy schedule. The source mentioned racket sports, running, walking, and HIIT, and favored vigorous activity because it seemed time-efficient. Walking still counts as useful activity and need not be dismissed as wasted time.

My recorded routine was a 1,200 m run—three laps of a 400 m track—at about 4 minutes 30 seconds per kilometer, around four times a week. I estimated roughly six minutes per run and 24 minutes per week. I also stretched my back and legs, used 10 kg dumbbells for arm exercises, performed squats with a 20 kg load about three times weekly, and did several forms of push-up. I estimated under two hours per week, excluding physical-education classes.

Those loads and speeds describe me at that time. They are not suitable starting targets for every reader, and breathlessness severe enough to force someone to bend over is not a reliable universal training goal. Activity should be built up according to fitness and health.

The original used 220 - age as a maximum-heart-rate estimate, then selected 70–90% of that estimate. For age twenty it obtained 140–180 beats per minute. This is only a rough population formula, not a measured personal maximum or a guarantee of safety. Exceeding the estimate does not by itself establish imminent death, and staying below it does not guarantee safety.

For context, WHO guidance recommends adults work toward 150–300 minutes of moderate activity or 75–150 minutes of vigorous activity weekly, or an equivalent combination, with muscle strengthening. Some activity is better than none. A short vigorous routine can contribute without automatically meeting the whole recommendation.

I usually exercised sometime between 9 and 10:30 p.m., ate dinner between 6 and 7:30 p.m., and went to bed around midnight to 1 a.m. I tried to leave time between meals, vigorous exercise, and sleep. The schedule is an example of fitting habits together, not a required timetable.

Other habits

Smoking

A long-lived individual who smoked does not establish that smoking is harmless. I described smoking occasionally in social situations, then choosing not to smoke while at university because I saw no reason to continue there. Avoiding smoking is preferable to treating occasional use as safe.

The original gives an 11–12-year lifespan reduction and an unclear comparison of light and heavy smoking using a difference of 0.4. No source or metric is supplied for that comparison, so it cannot support a numerical personal-risk calculation.

Alcohol

I wrote that I had learned to avoid heavy drinking. The rough conversion in the source is:

ethanol grams ≈ drink volume in mL × alcohol fraction × 0.8

Thus 100 mL at 40% alcohol contains roughly 32 g of ethanol. The original calls less than 100 g per week a low-intake range, but that is not a risk-free threshold. Lower consumption does not mean no alcohol-related risk.

Sunlight

The source recommends sunlight for indoor workers and claims even excessive exposure adds six years of life. That unsupported claim should not guide behavior. Excess ultraviolet exposure damages skin and eyes and increases skin-cancer risk. Outdoor activity and sun protection can coexist; see WHO’s ultraviolet-radiation guidance.

Sweet drinks, water, and tea

I rarely drank milk tea and preferred to limit sweet beverages. I encouraged drinking water and recorded a habit of more than four cups a day. Actual fluid needs vary with food, climate, activity, health, and cup size; more is not always better.

I enjoyed tea about three days a week, especially on mornings without an early class and on weekends. This was a pleasant routine, not proof that tea would extend my life by a fixed amount.

Teeth and sleep

I emphasized brushing twice daily. The source then attaches several disease percentages to poor oral hygiene without providing the underlying studies; those associations should not be presented as direct causal effects of skipping a brushing session.

The original calls 6.5–7 hours the best sleep duration. Current CDC guidance recommends at least seven hours for adults aged 18–60, with age-specific recommendations for other groups. Sleep quality and individual needs matter too. Observed associations with long sleep can reflect underlying health conditions and do not show that forcing oneself to sleep less improves health.

Sitting, mood, and housework

Long computer sessions were difficult to avoid, so I stretched and exercised. Regular movement breaks and reducing prolonged sedentary time are also useful; a brief stretch does not automatically erase every effect of sitting.

I reflected on how temperament, experience, reading, and deliberate thought shape emotional habits. People can respond differently to the same environment, but difficult emotions should not be reduced to a defect of character.

The original distinguishes heavier household work—washing a car, moving furniture, carrying water—from lighter tasks such as washing dishes, cooking, mopping, and hanging laundry. Both can involve movement. Loads should suit the person’s abilities, especially for older adults.

Numerical claims retained for traceability

Apart from the linked fruit-and-vegetable review, the source does not provide enough citations to verify the following figures. They are recorded here as claims made in the 2023 essay, not endorsed estimates or prescriptions:

Original topic	Figure stated in the source
Racket sports	47% lower all-cause mortality; sessions of 45–60 minutes, 3–5 times weekly
Brief vigorous activity	16% lower mortality at 15 minutes weekly; 40% at 20 minutes
Heavy alcohol use	Up to 50% higher mortality
Sugary drinks	7% and 21% higher mortality for one and two daily drinks
Sweetened sugar-free drinks	11% and 21% higher mortality
Tea three times weekly	15% lower mortality and 1.26 additional years of life
Poor toothbrushing habits	Cancer +9%, COPD +12%, cirrhosis +25%, early mortality +25%
More than ten hours of sleep	Mortality +34% for men and +48% for women
Heavy housework in older men	29% lower mortality

The source also conflates mental-health and mortality research when introducing exercise. Study populations, exposure definitions, confounding, and whether a result is relative or absolute risk all matter. These percentages cannot be combined into a personalized longevity score.

Keep the long view

My intention was to make room for health while pursuing meaningful work. Rest, avoid chronic overwork, and build habits that can last. I hoped readers would remain healthy and energetic enough to keep pursuing their ideas for another fifty years—not that any routine could promise that outcome.

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