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Metabolic Rate

All articles tagged with #metabolic rate

Debunking the 'fast' vs 'slow' metabolism myth: weight isn’t dictated by a single rate
health1 month ago

Debunking the 'fast' vs 'slow' metabolism myth: weight isn’t dictated by a single rate

The article explains that metabolism is a mix of basal energy use, digestion, daily movements, and exercise, not simply a ‘fast’ or ‘slow’ label. Hypermetabolism can occur with certain conditions (e.g., hyperthyroidism), while hypothyroidism and PCOS can slow resting energy use. Weight changes arise from multiple interacting factors—genetics, eating habits, activity, and sleep—so most healthy people don’t have drastic, lasting highs or lows in metabolic rate.

Epaulette Shark Defies Reproduction Energy Expectations
science2 months ago

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.

The Human Heat Limit: Exploring the Threshold of Temperature Tolerance
health2 years ago

The Human Heat Limit: Exploring the Threshold of Temperature Tolerance

A study conducted by researchers at the University of Roehampton has shed light on the upper limit of the thermoneutral zone of the human body, which is the range of temperatures where the body doesn't have to exert extra energy to maintain its core temperature. The study found that the upper limit likely lies between 40℃ (104F) and 50℃ (122F), beyond which the body's ability to dissipate heat and function optimally decreases. The findings have implications for understanding the impact of heatwaves and warm temperatures on human health and can inform policies on working conditions, sports, medication, and international travel.