The relationship Dr. Pontzer explained, is an observed one. There is no "law" that makes this invariable. Second, he also explained that we have larger brains and babies and that this may be the reason for our higher energy expenditure. Also, I would submit that brains are fat mass, not lean mass. As a result, our brains are (I think) not taken into account in this calculation and that might explain away the apparent inconsistency.
And it is necessary. The exercise-for-weight-loss myth is still omnipresent, despite the fact that we have known for decades that exercise is all but useless for weight loss. Herman Pontzer's contribution to the field cannot be overstated.
@@feudelacroix I don't think anyone loses 50 pounds just swimming across the Channel, but I could be wrong. Do you have verifiable credible evidence for that? Besides, no one is claiming that in the short term exercise can't lead to weight loss. It can. In the long run, however, it doesn't. That is what we see in very active populations. They don't burn more energy than sedentary people. However, there does seem to be a role for weight maintenance, but even that is not all that convincing because it is largely based on the NWCR, which is observational and has limitations as a result. Nevertheless, that is a part that cannot be ruled out.
Always a great update on hypotheses and research explaining much...thanks for the presentations...
One question I had was, why with the increased metabolism don’t we have a decreased life span but instead one of the longest life spans?
The relationship Dr. Pontzer explained, is an observed one. There is no "law" that makes this invariable. Second, he also explained that we have larger brains and babies and that this may be the reason for our higher energy expenditure. Also, I would submit that brains are fat mass, not lean mass. As a result, our brains are (I think) not taken into account in this calculation and that might explain away the apparent inconsistency.
Presenting 1998 study results in 2021?
And it is necessary. The exercise-for-weight-loss myth is still omnipresent, despite the fact that we have known for decades that exercise is all but useless for weight loss. Herman Pontzer's contribution to the field cannot be overstated.
@@feudelacroix I don't think anyone loses 50 pounds just swimming across the Channel, but I could be wrong. Do you have verifiable credible evidence for that?
Besides, no one is claiming that in the short term exercise can't lead to weight loss. It can. In the long run, however, it doesn't. That is what we see in very active populations. They don't burn more energy than sedentary people.
However, there does seem to be a role for weight maintenance, but even that is not all that convincing because it is largely based on the NWCR, which is observational and has limitations as a result. Nevertheless, that is a part that cannot be ruled out.
Good reasons to give up smoking, eat less red meat, exercise, and to not chase the ones who don't run away.