Tag

Energy Expenditure

All articles tagged with #energy expenditure

science1 month ago•34 min saved

Epaulette Shark Defies Reproduction Energy Expectations

A study of the epaulette shark finds reproduction does not trigger a rise in metabolic energy use, challenging the idea that shark reproduction is highly energy-intensive. By monitoring oxygen uptake and hormones during egg-laying, researchers observed a flat energy demand, suggesting sharks have evolved efficient reproductive physiology. This adaptation could help sharks persist as oceans warm, with positive implications for coral reef health.

via Yahoo News Canada|

#climate-stress #energy-expenditure #epaulette-shark

science1 month ago•4 min saved

Walking Sharks Reproduce Without Extra Energy, Study Finds

Australian scientists studying epaulette (walking) sharks found that egg production uses no extra energy, challenging the idea that reproduction is always energetically costly. The flat energy demand suggests a unique adaptation that may help these sharks reproduce under environmental stress, with implications for shark populations and reef health amid warming oceans.

via Indian Defence Review|

#energy-expenditure #epaulette-sharks #reef-ecosystems

science4 months ago•4 min saved

Scientists Discover the Fundamental Metabolic Limit of Human Endurance

A study finds that humans have a metabolic ceiling at about 2.5 times their basal metabolic rate, which even elite endurance athletes cannot sustainably surpass, highlighting the biological limits of human endurance.

via SciTechDaily|

#biological-limits #energy-expenditure #human-endurance

science4 months ago•3 min saved

Physical Activity Boosts Daily Energy Expenditure, Study Finds

A study published in PNAS found that increased physical activity leads to higher daily calorie burn without the body compensating by reducing energy use elsewhere, supporting an additive model of energy expenditure.

via Medical Xpress|

#calorie-burn #energy-budget #energy-expenditure

health4 months ago•3 min saved

Physical Activity Boosts Daily Energy Expenditure

A study published in PNAS shows that increased physical activity leads to higher daily calorie burn without the body compensating by reducing energy use elsewhere, supporting the idea that exercise adds to overall energy expenditure rather than redistributing it. The research involved measuring energy use in participants with varying activity levels and found that more active individuals burn more calories overall, with less time spent inactive, although further research is needed to understand potential energy compensation under different conditions.

via Virginia Tech News|

#calorie-burn #energy-budget #energy-expenditure

science4 months ago•3 min saved

The Fundamental Metabolic Limit of Human Endurance

A study finds that even elite athletes have a 'metabolic ceiling' at about 2.4 times their basal metabolic rate over long periods, limiting how much energy they can expend, with increased activity leading to unconscious reductions in other energy uses.

via Nature|

#athletes #basal-metabolic-rate #energy-expenditure

health7 months ago•92 min saved

Diet Over Exercise: New Study Explains Obesity Trends

A new study suggests that diet plays a more significant role than lack of exercise in obesity, as energy expenditure differences across economic groups do not account for obesity variations, emphasizing the importance of dietary intake over physical activity for weight management.

via Hacker News|

#caloric-intake #diet #energy-expenditure

health7 months ago•7 min saved

New Study Reveals Diet, Not Exercise, as Main Cause of US Obesity

A global study shows that obesity in developed countries is driven more by high intake of ultra-processed foods than by reduced physical activity, despite higher calorie burn in these populations, challenging common assumptions about inactivity being the main cause of obesity.

via Study Finds|

#diet #energy-expenditure #health

health7 months ago•4 min saved

New Study Finds High-Calorie Diet, Not Exercise, as Main Cause of Obesity

A study analyzing diverse populations found that obesity is more strongly linked to high consumption of ultra-processed foods than to lack of exercise, with total energy expenditure only weakly associated with obesity, emphasizing the importance of diet quality in addressing the obesity epidemic.

via Medical Xpress|

#calorie-intake #energy-expenditure #exercise

health7 months ago•0 min saved

New Study Challenges Traditional Views on Obesity Causes

A new study published in PNAS reveals that obesity is rare among hunter-gatherer and less-developed populations but widespread in wealthy, industrialized nations, highlighting the role of socioeconomic and lifestyle factors in obesity.

via The Washington Post|

#energy-expenditure #global-health #health

science1 year ago•3 min saved

Octopus Camouflage: A High-Calorie Disguise

New research reveals that octopuses expend significant energy when changing color, comparable to a human's calorie burn during a 30-minute jog. This study, using ruby octopuses, measured oxygen consumption during color changes, highlighting the energetic cost of their sophisticated camouflage system. The findings provide insights into the biological trade-offs octopuses make for survival, as their color-changing ability is more energy-intensive than similar adaptations in other animals like chameleons.

via Livescience.com|

#cephalopods #chromatophores #color-change

science1 year ago•3 min saved

The Unique Energy Evolution of Humans

A Harvard study reveals that humans have evolved to possess higher metabolic rates than other mammals, including apes and chimpanzees. This unique metabolic trait, characterized by high resting and active metabolism, allowed early humans to support larger brains, longer lifespans, and increased reproduction. Unlike other primates, humans can maintain high activity levels without compromising resting metabolic rates, partly due to their ability to dissipate heat through sweating. The research challenges previous beliefs about primate metabolism and highlights humans' energetic uniqueness.

via Phys.org|

#biological-sciences #energy-expenditure #human-evolution

health1 year ago•4 min saved

Revolutionary Weight Loss Drug Curbs Appetite and Burns Calories Without Side Effects

Researchers at the University of Copenhagen have identified a new drug target, NK2R, that could revolutionize weight loss treatments by reducing appetite and increasing energy expenditure without causing nausea or muscle loss. This discovery, published in Nature, shows promise for treating obesity and type 2 diabetes, conditions affecting over 380 million people globally. The drug candidate has shown positive results in both mice and non-human primates, potentially leading to more effective and tolerable therapies. The University holds patent rights, and related biotech companies have been established to further develop these treatments.

via EurekAlert|

#diabetes #drug-development #energy-expenditure

health1 year ago•4 min saved

Pregnancy Requires 50,000 Calories, 10 Times More Energy Than Expected

New research reveals that pregnancy requires significantly more energy than previously thought, with the total caloric cost equating to nearly 50,000 calories. This study highlights the substantial metabolic demands of gestation, emphasizing the importance of adequate nutrition and rest for pregnant individuals. Experts recommend increased caloric intake, particularly in the later stages of pregnancy and during breastfeeding, to support both maternal and fetal health.

via CNN|

#energy-expenditure #health #metabolism

healthcare2 years ago•4 min saved

"Unveiling the Future of Obesity Medicine: Key Insights and Developments"

The future of obesity medicine holds significant changes, including a shift towards prioritizing dietary quality, a focus on fat loss instead of weight loss in antiobesity medications, efforts to increase energy expenditure, the development of less frequent administration options, and the need to address barriers to access such as medication costs and lack of obesity medicine providers. Policymakers are also aiming to reform the sick-care system to improve access to obesity treatments.

via Medscape|

#access-to-care #antiobesity-medications #energy-expenditure