our correct weight

we are organisms - many celled, largish, intelligent, but for all that, still simply organisms. as such, we have a certain build, a certain weight that is the correct weight for our organism.
i feel much better if i have to climb a few flights of stairs and my weight is correct – if my muscle to weight ratio is correct. when i go hiking and have a hefty backpack to carry: the tent, the spare clothing, and the food - the going becomes much more difficult, i’m out of breath easier and i get tired quicker and need to rest more often. the weight i have to carry (the backpack plus my body weight) is not in balance with the heart. the heart has not only to be fit (and i’ll talk about fitness in another blog) but also has to be the correct size for the organism – and that’s me.
regular size heart working hard all the time to pump blood to a large body = trouble.
Sportspeople - long distance runners, climbers, talk of their muscle to weight ratio as being crucial for participating in their particular sport. Every pound of weight we put on is 5 miles of blood vessels. If your heart beats 100,000 times a day, that's 500,000 miles a day for one pound of fat,– see discussion here
body mass index (bmi) is a is a tool used to assess our weight which in turn helps us to learn about our health risks. are you at your healthy weight? you can either look up your bmi on the chart below or find out fast here