# Physiological causes of cold sensitivity in aging

> Live situation record from CLSTR: https://clstr.news/situations/physiological-causes-of-cold-sensitivity-in-aging
> Updated: 2026-10-06T11:54:51.000Z. Sources: 6. Developments: 2.

Research into the physiological causes of cold sensitivity in older adults highlights several biological drivers. A primary factor is a declining metabolic rate, which reduces the body’s ability to generate internal heat; basal and resting heat production can decrease by approximately twenty percent between the ages of thirty and seventy, largely due to the loss of active muscle mass.

Changes in body composition also play a role, specifically a decrease in subcutaneous fat that serves as natural insulation. Other contributing factors include less efficient blood circulation, thinner skin, and a diminished response from the hypothalamus. Additionally, changes in thyroid function and reduced brown fat activity can lower heat production, increasing the risk of hypothermia.

## Timeline

### 2026-10-06: Physiological factors causing cold sensitivity in older adults

Aging causes physiological changes, including a declining metabolic rate and loss of subcutaneous fat, which lead many older adults to feel cold even in warm environments.

4 sources. https://clstr.news/cluster/physiological-factors-causing-cold-sensitivity-in-older-adults

### 2026-10-04: Aging and cold sensitivity: physiological causes and risks

Aging affects thermoregulation through muscle loss, slower metabolism, and reduced subcutaneous fat, making older adults more susceptible to feeling cold and increasing hypothermia risks.

2 sources. https://clstr.news/cluster/aging-and-cold-sensitivity-physiological-causes-and-risks

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Cite as: Physiological causes of cold sensitivity in aging. CLSTR, https://clstr.news/situations/physiological-causes-of-cold-sensitivity-in-aging