They're a different species and they are replacing us
Gotta make way for the homo-superior.
Little kids burn so much energy, they’re like a different species, study finds
21–30 of 118 posts
Re: Little kids burn so much energy, they’re like a different species, study finds
#22Personally, I was more surprised by the various groups of people who _don't_ have higher metabolic rates: > Children’s metabolic rates stay high until age 5, but the rate slowly begins to glide down until it plateaus around age 20. Interestingly, adult rates are stable until age 60, when they begin to decline. After age 90, humans use about 26% less energy daily, Pontzer says. > The study also found that pregnant wom…
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
You’re onto something there. Folks 50 years ago on average lost a bit of weight into their 40s and 50s. Now they gain weight.
There’s something different about our environment.
Re: Little kids burn so much energy, they’re like a different species, study finds
#23Personally, I was more surprised by the various groups of people who _don't_ have higher metabolic rates: > Children’s metabolic rates stay high until age 5, but the rate slowly begins to glide down until it plateaus around age 20. Interestingly, adult rates are stable until age 60, when they begin to decline. After age 90, humans use about 26% less energy daily, Pontzer says. > The study also found that pregnant wom…
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
Metabolic rates (caloric intake and use) may be the same, but the bodily priorities for where those calories go may differ. That would be my guess anyway.
Re: Little kids burn so much energy, they’re like a different species, study finds
#24Personally, I was more surprised by the various groups of people who _don't_ have higher metabolic rates: > Children’s metabolic rates stay high until age 5, but the rate slowly begins to glide down until it plateaus around age 20. Interestingly, adult rates are stable until age 60, when they begin to decline. After age 90, humans use about 26% less energy daily, Pontzer says. > The study also found that pregnant wom…
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
That might be the effect of long term imbalance of hormones.
Weight gain is long term, and a bad diet and/or feeding period take a long time to do their damage. Think one pound a year.
Anyway, I disclaim any particular medical or nutritional expertise.
Re: Little kids burn so much energy, they’re like a different species, study finds
#25Earlier quoted context omitted.
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
You’re onto something there. Folks 50 years ago on average lost a bit of weight into their 40s and 50s. Now they gain weight. There’s something different about our environment.
Everyone[0] has a car, is sedentary, and has cheap, fast, and easy access to a huge variety of high-calorie foods?
[0] not literally
Re: Little kids burn so much energy, they’re like a different species, study finds
#26Personally, I was more surprised by the various groups of people who _don't_ have higher metabolic rates: > Children’s metabolic rates stay high until age 5, but the rate slowly begins to glide down until it plateaus around age 20. Interestingly, adult rates are stable until age 60, when they begin to decline. After age 90, humans use about 26% less energy daily, Pontzer says. > The study also found that pregnant wom…
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
Without more details if be inclined to blame "almost identical" as the culprit (not an expert):
Making all your meals 5% bigger would cause a weight gain of nearly 10lbs/yr, and the kind of switch in diet that can happen naturally with age (especially including eating out more with friends) can make it hard to spot incremental changes.
Moreover, a lot of exercise doesn't actually do much for weight loss (it's still immensely beneficial for your health; please don't stop). To counteract the aforementioned 10lbs/yr you'd have to walk an extra ~20 minutes per day. It isn't all that much per se, but if your exercise were 20 minutes of something high intensity and an hour of something low intensity every single day (a lot more than most people get) it'd still be a noticeable demand on your time -- enough that I don't think you'd call the extra exercise level "nearly identical."
It's also possible less visible culprits exist if you're used to average weight gains/losses of under a pound per month as a function of your diet/activity. E.g., iirc fidgiting and tapping your feet consumes nearly a pound per month in calories, and that doesn't seem like the kind of thing you'd recognize stopping/starting over a timespan of decades.
Re: Little kids burn so much energy, they’re like a different species, study finds
#27Personally, I was more surprised by the various groups of people who _don't_ have higher metabolic rates: > Children’s metabolic rates stay high until age 5, but the rate slowly begins to glide down until it plateaus around age 20. Interestingly, adult rates are stable until age 60, when they begin to decline. After age 90, humans use about 26% less energy daily, Pontzer says. > The study also found that pregnant wom…
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
While there might be a very small decline in resting metabolism, most of those people are delusional. They overestimate their exercise and underestimate calorie consumption.
I recommend that everyone get an occasional resting metabolic rate test. It's an easy non-invasive test which uses your exhaled gasses to calculate your daily calorie burn. Most people who claim they can't lose weight due to a "slow metabolism" actually have a totally normal metabolism.
Re: Little kids burn so much energy, they’re like a different species, study finds
#28Earlier quoted context omitted.
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
You’re onto something there. Folks 50 years ago on average lost a bit of weight into their 40s and 50s. Now they gain weight. There’s something different about our environment.
I think it was partially smoking, and not eating as much food. It seemed like everyone smoked 50 years ago.
(I don't know if people lost weight in their 40-50's.)
Re: Little kids burn so much energy, they’re like a different species, study finds
#29Earlier quoted context omitted.
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
That might be the effect of long term imbalance of hormones. Weight gain is long term, and a bad diet and/or feeding period take a long time to do their damage. Think one pound a year. Anyway, I disclaim any particular medical or nutritional expertise.
> Anyway, I disclaim any particular medical or nutritional expertise.
Has anyone actually ever been sued on a forum for bad medical advice? That seems impossible when there are literal quack colleges in the US.
Re: Little kids burn so much energy, they’re like a different species, study finds
#30Earlier quoted context omitted.
This seems almost unbelievable to me. Almost everyone I know, with a handful of exceptions I can think of, had a dramatic change in what I can only say was metabolism at 30 declining steeply to 40. I can tell you personally my ability to lose weight when exercising daily has decreased significantly since 30. If it’s not metabolism, then what? Diet and exercise are almost identical.
Stress
True, there are studies showing increased exposue to cortisol causing weight gain.