9

Currently I am not aware of any scientifically based recommendations for levels of healthy body fat. There are empirical observations and actuarial tables/considerations, but there hasn't been a definitive "For a 30 year old Caucasian male, 8-15% body fat is ideal for health" studies out yet. There was a study in 2000 that was published in the American ...


8

There is evidence that a muscular arm will produce a higher systolic reading if the wrong sized cuff is applied. There are two measurements in a blood pressure reading, the systolic and the diastolic. The systolic blood pressure (SBP) is the first number in a reading (Such as the 120 in 120/60), and the diastolic blood pressure (DBP) is the second number. ...


7

First of all, the 1000-2500 calorie statement from the answer to this question is not due to formula inaccuracies (only 0.5% of the variation were attributed to that), but is the actual measured BMR in a study within Scottish population. Second, we know from the above mentioned question in SE that the BMR is dependent, amongst others, of fat-free body mass (...


7

While the measured quantities are the same across border, both names and units can vary. The main difference is often the unit used for the concentration of each analyte : either mass per volume or mole per volume (eg: glucose 1g/L = 5.5 mmol/L), sometime variation on the unit prefix (eg: haemoglobin 120 g/L = 12 g/dL). It is of course possible to convert a ...


5

Take both to your doctor's office the next time and compare them to the manual cuff. There are many models that can be calibrated that way. Not all models are as accurate as others. This article from the American Heart Association recommends arm monitors over wrist ones. Wrist and finger monitors are not recommended because they yield less reliable ...


4

Yes it can. As a general statement, I'm not sure how much it can go down before it's a problem, which is what I think you are asking as your second question. Starving to death might be seen as this taking the BMR close to zero (though I don't think you would get to zero before death). I think a good reference for this is Peter Emery's review article "...


4

Minim (unit): Part of the Apothecary system. It is rarely used anymore(some countries and areas still use the apothecary system) and is a alternative to the drop(which was formerly the smallest unit of the apothecary system). The minim (abbreviated min, ♏ or Mx, a symbol for minim in the apothecaries' system.svg) is a unit of volume in both the imperial ...


3

The count of melanocytes per square mm depends on the body region and 1500 seems to be the upper limit. Interestingly in different races, the number of melanocytes is THE SAME. Quoting from:Understanding the Melanocyte Distribution in Human Epidermis: An Agent-Based Computational Model Approach The skin color in young and healthy individuals ...


2

Short answer Using mmol/L helps with revealing some useful relationships between groups of analyzed substances while using mg/dL might obscure those relationships. Long anwer I wasn't able to find original proposition to switch from mg/dL to mmol/L which should be in "Quantities and Units in Clinical Chemistry. Including Recommendation 1966 of the ...


2

There are specialists who do different degrees of positional assessments - specifically orthodontists, dentists, or maxillofacial surgeons (usually those who specialize in TMJ). Also, some practicing D.O. physicians and massage therapists who specialize in cranial OMT may address positioning. OSA is not the only potential complication of poor mandibular ...


2

As I pointed out in the comments under your other related question, mandibular advancement devices are not a new idea. From my experience as a diagnosed sufferer of chronic OSA (Obstructive Sleep Apnoea), I underwent the home sleep study you described and it was not a "go/no go" test for CPAP, it was a yes/no test for sleep apnoea. It was suggested in 2014 ...


2

This paper might be of interest to you (1) They have attempted to summarize together a table of the values for the common upper and lower limb nerves including both sensory and motor. It is quite detailed in the location of the electrodes, and includes latency, amplitude and conduction velocity which you are looking for. Paper: (1) Chen, S.; Andary, M.; ...


1

Just for convenience, like you point out. The same thing is done in nearly every science, often by changing the SI units scale. We talk about weights of humans in kilograms, but measure drug doses in milligrams and micrograms. For relatively rare cases in a population, the equivalent to talk in terms of N per 10^k. It's difficult to tell at a glance that 0....


1

These substances are measured in mass concentration (Example: Dopamine), that is, mass per volume. The standard SI unit for this is mg/ml, but I've also seen ng/ml or other units. This is because they are usually used in solutions as an infusion. If you were to be just talking about how much neurotransmitter you have, you'd use any unit of mass.


1

If you measure only your heart rate, you can only provide measures of the "population" of your own heart rate. You should not take a sample from one individual as indicative of the population of all persons and their heart rates. I'm not sure you can understand the variation of heart rates generated from a single device when measured on a non-standardized ...


1

That figure is in kilocalories. A human needs about 2000 kilocalories per day. Sometimes a kilocalorie is described as a "big calories or a "Calorie", but to me that's more confusing than helpful.


1

Google "alcohol content of bread" and you'll see: 1.9% Alcohol. However, during the baking process, most of the alcohol in the dough evaporates into the atmosphere. This is basically the same thing that happens to much of the water in the dough as well. And it has long been known that bread contains residual alcohol, up to 1.9% of it. Aug 3, 2017 ...


1

Generally these decisions are "made" by work groups of specialists in the field. Your question is very general. There are so many measurements that can be done from blood samples that there is no way I can provide you with information on exactly who decides what the reference value is. ("Who decides" makes it sound like it is arbritrary - it is not. ...


1

HIV blood tests (for antigens and antibodies) are, at least where I practice, 4mL. However, if your doctor wants other blood tests she might add 1-2 vials of the same size. Depends on the organisation of the clinical lab and the tests draw. I'm not fully familiar with how rapid HIV testing is done though. That might be slightly different.


1

You must consider here why you want to measure your resting heart rate. While one may argue whether you should measure it in the morning while you are still in bed or after you have eaten breakfast, but what matters in practice is what will give the best results when monitoring your fitness, particularly to monitor for possible overtraining. So, what you ...


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