BMI#
Note
BMI (Body Mass Index) is an indicator used to assess whether an individual's weight is healthy. It is calculated by dividing weight (in kilograms) by the square of height (in meters). The BMI value can help determine whether a person is within a healthy weight range or if they are underweight, normal weight, overweight, or obese.
According to the World Health Organization (WHO) standards, the classifications for BMI are as follows:
- Below 18.5: Underweight
- 18.5 to 24.9: Normal weight
- 25 to 29.9: Overweight
- 30 and above: Obese
It is important to note that BMI is only a rough indicator; it does not take into account factors such as muscle mass, bone density, and overall body fat distribution. Therefore, for certain populations, such as athletes or the elderly, BMI may not accurately reflect their health status. If you have concerns about your weight or health, it is advisable to consult a doctor or health professional for a more comprehensive assessment and advice.
Free Online BMI Calculator - Calculate Your Body Mass Index (BMI) for Free
69 kg, BMI 20.4
Actually, 80 kg BMI is also within the normal range.
Why lose weight?
Considering my small frame, my original weight is small, and the increase is just belly fat and a layer of fat.
Fat has a role in insulation and can increase the probability of estrogen, having more estrogen as a man is not bad, it feels less aggressive, but I am not aggressive to begin with, I am quite rational.
While fat increases weight, it can also enhance bone strength and density, and increase muscle strength.
However, fat can also increase the burden on the heart, increase vascular burden, and lead to high blood lipids.
Heart#
Compared to fat, the heart is the engine, a miraculous engine, with a power of 1.5W or 14 watts.
The power of a normal person's heart to pump blood is about 1.5W. The physical meaning is that the heart can do 1.5J of work per second, so in 100 seconds, the heart can do enough work to lift a person weighing 60 kg to a height of 0.25m at a constant speed. Problem and reference answer - Qingxia Education Elite Tutoring Network -
How many watts does the heart produce per hour? _ Homework Help
Artificial hearts have a power more than 20 times that of the heart, but their effect is still limited, why? _ NetEase Subscription
Maglev artificial heart power is about 5 watts? It needs to carry multiple batteries for power. It seems to have lost the pulse. What is the heartbeat like when an old Chinese medicine practitioner feels the pulse?
Heart failure patients have hope: China's independently developed full magnetic levitation artificial heart weighs less than 180 grams! _ Bilibili
The comments section of this video is quite interesting.
Some say that the Toyota Land Cruiser is like a small horse pulling a big cart, so the weight, start-stop is all weight. It's caused by obesity.
The BMW Mini has a bit too much engine power. That's how it got the nickname "little cannon."
As a working-class person and a cyclical investor, the more cycles you go through, the more opportunities you have to make a bit more money. Making money is not the ultimate goal; it's for emergencies. When you want to retire with dignity and not want to trouble your children or even caregivers, when you need a smart robot for elderly care, when you are diagnosed with cancer and don't want to crowdsource in your friend circle.
The heart needs to be cared for, not to say at the level of a little cannon. It needs to be stable and durable.
Originally planned to finish in one piece, but after thinking more, I decided to write it in several parts.